WO2020253770A1 - 由用户设备执行的方法以及用户设备 - Google Patents

由用户设备执行的方法以及用户设备 Download PDF

Info

Publication number
WO2020253770A1
WO2020253770A1 PCT/CN2020/096790 CN2020096790W WO2020253770A1 WO 2020253770 A1 WO2020253770 A1 WO 2020253770A1 CN 2020096790 W CN2020096790 W CN 2020096790W WO 2020253770 A1 WO2020253770 A1 WO 2020253770A1
Authority
WO
WIPO (PCT)
Prior art keywords
optionally
psfch
user equipment
resource
configuration information
Prior art date
Application number
PCT/CN2020/096790
Other languages
English (en)
French (fr)
Inventor
赵毅男
刘仁茂
罗超
Original Assignee
夏普株式会社
赵毅男
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 夏普株式会社, 赵毅男 filed Critical 夏普株式会社
Priority to US17/617,914 priority Critical patent/US20220312388A1/en
Publication of WO2020253770A1 publication Critical patent/WO2020253770A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular to methods executed by user equipment, methods executed by base stations, and corresponding user equipment.
  • D2D communication (Device-to-Device communication, device-to-device direct communication) refers to a direct communication method between two user devices without being forwarded by a base station or core network.
  • 3rd Generation Partnership Project 3rd Generation Partnership Project
  • the upper layer supports Unicast and Groupcast communication functions.
  • V2X stands for Vehicle to Everything. It hopes to realize the information interaction between vehicles and all entities that may affect vehicles. The purpose is to reduce accidents, alleviate traffic congestion, reduce environmental pollution and provide other information services.
  • the application scenarios of V2X mainly include 4 aspects:
  • V2V Vehicle to Vehicle, that is, vehicle-to-vehicle communication
  • V2P Vehicle to Pedestrian, that is, the vehicle sends a warning to pedestrians or non-motorized vehicles
  • V2N Vehicle to Network, that is, the vehicle connects to the mobile network
  • V2I Vehicle to Infrastructure, that is, communication between vehicles and road infrastructure.
  • V2X stage 1 introduced a new D2D communication interface called PC5 interface.
  • the PC5 interface is mainly used to solve the problem of cellular car networking communication in high-speed (up to 250 km/h) and high-node density environments. Vehicles can interact with information such as position, speed and direction through the PC5 interface, that is, vehicles can communicate directly through the PC5 interface.
  • the functions introduced by LTE Release 14 V2X mainly include:
  • the second phase of the V2X research topic belongs to the research category of LTE Release 15 (see Non-Patent Document 4).
  • the main features introduced include high-order 64QAM modulation, V2X carrier aggregation, short TTI transmission, and the feasibility study of transmit diversity.
  • the research plan of this subject includes the research goals of supporting sidelink unicast, sidelink groupcast and sidelink broadcast.
  • the physical side-line communication feedback channel PSFCH was introduced to carry the HARQ feedback information in the side-line communication, such as HARQ ACK or HARQ NACK.
  • the design of the HARQ feedback mechanism for NR V2X multicast includes the following conclusions: For groupcast communication, when HARQ feedback is enabled, Two HARQ feedback mechanisms are supported, namely:
  • the receiving UE only feeds back HARQ NACK; when the receiving UE decodes the PSCCH correctly and fails to decode the corresponding PSSCH correctly, the receiving UE feeds back NACK; otherwise, the receiving UE does not perform HARQ feedback;
  • All receiving UEs in the group share one PSFCH resource for HARQ NACK feedback.
  • the receiving UE feeds back HARQ ACK and HARQ NACK; when the receiving UE decodes the PSCCH correctly and fails to correctly decode the corresponding PSSCH, the receiving UE feeds back NACK; when the receiving UE decodes the PSCCH correctly and decodes the corresponding PSSCH correctly, Receive UE feedback ACK.
  • Each UE in the group uses a separate PSFCH resource to feed back HARQ ACK and HARQ NACK.
  • the configuration of the PSFCH in the slots of the resource pool is periodic, and the period can be expressed as N, and the value of N can be 1, or 2, or 4.
  • the solution of this patent includes a method for the side-line communication UE to determine the PSFCH resource used for feedback of the side-line communication HARQ feedback.
  • Non-Patent Document 1 RP-140518, Work item proposal on LTE Device to Device Proximity Services
  • Non-Patent Document 2 RP-142311, Work Item Proposal for Enhanced LTE Device to Device Proximity Services
  • Non-Patent Document 3 RP-152293, New WI proposal: Support for V2V services based on LTE sidelink
  • Non-Patent Document 4 RP-170798, New WID on 3GPP V2X Phase 2
  • Non-Patent Document 5 RP-181480, New SID Proposal: Study on NR V2X
  • Non-Patent Document 6 RAN1#94bis, Chairman notes, section 7.2.4.2
  • Non-Patent Document 7 RAN1#95, Chairman notes, section 7.2.4.2
  • Non-Patent Document 8 RAN1AH#1901, Chairman notes, section 7.2.4.1.4, section 7.2.4.3
  • Non-Patent Document 9 RAN1#96bis, Chairman notes, section 7.2.4.5
  • the present disclosure provides a method executed by a user equipment and a user equipment, which can be effectively applied to V2X application scenarios based on 5G NR network technology.
  • a method executed by a user equipment including: receiving configuration information of side-line communication, that is, first configuration information; receiving side-line communication control information SCI and corresponding physical side-line information sent by other user equipment Communication shared channel PSSCH; determine the transmission time slot S of the physical side communication feedback channel PSFCH corresponding to the physical side communication shared channel PSSCH; determine N side communication time slots associated with the time slot S, where N Is a positive integer.
  • the first configuration information is configuration information sent by the base station through radio resource control RRC signaling; or the first configuration information is included in the pre-configuration of the user equipment
  • the first configuration information includes configuration information of the resource pool, that is, second configuration information.
  • the second configuration information includes: the period of the PSFCH, that is, the N; and/or the feedback interval K, where K is a positive integer.
  • the user equipment determines the transmission time slot S of the physical side communication feedback channel PSFCH corresponding to the physical side communication shared channel PSSCH, so that the PSFCH and the The interval between PSSCHs is the smallest integer greater than or equal to the feedback interval K, and makes the time slot S contain PSFCH resources.
  • the user equipment determines N side-line communication time slots associated with the time slot S according to the period N.
  • a user equipment including: a processor; and a memory storing instructions, wherein the instructions execute the above-mentioned method when run by the processor.
  • Figure 1 is a diagram schematically showing the basic process of Rel-14/15 LTE V2X side-line communication.
  • Figure 2 schematically shows two resource allocation methods for Rel-14/15 LTE V2X.
  • FIG. 3 is a basic flowchart schematically showing a method executed by a user equipment in Embodiments 1 to 12 of the present disclosure.
  • FIG. 4 is a basic flowchart schematically showing a method executed by a user equipment in Embodiment 13 and Embodiment 14 of the present disclosure.
  • Fig. 5 is a block diagram schematically showing a user equipment involved in the present disclosure.
  • 3GPP 3rd Generation Partnership Project
  • the third generation partnership project the third generation partnership project
  • LTE Long Term Evolution, long-term evolution technology
  • PDCCH Physical Downlink Control Channel, physical downlink control channel
  • DCI Downlink Control Information, downlink control information
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • UE User Equipment, user equipment
  • eNB evolved NodeB, evolved base station
  • gNB NR base station
  • TTI Transmission Time Interval, transmission time interval
  • OFDM Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing
  • C-RNTI Cell Radio Network Temporary Identifier, cell radio network temporary identifier
  • CSI-RS CSI-Reference Signal, channel state measurement reference signal
  • CRS Cell Reference Signal, cell specific reference signal
  • PUCCH Physical Uplink Control Channel, physical uplink control channel
  • PUSCH Physical Uplink Shared Channel, physical uplink shared channel
  • UL-SCH Uplink Shared Channel, uplink shared channel
  • SCI Sidelink Control Information, side-line communication control information
  • PSCCH Physical Sidelink Control Channel, physical side link control channel
  • MCS Modulation and Coding Scheme, modulation and coding scheme
  • CRB Common Resource Block, common resource block
  • CP Cyclic Prefix, cyclic prefix
  • PRB Physical Resource Block, physical resource block
  • PSSCH Physical Sidelink Shared Channel, physical sidelink shared channel
  • FDM Frequency Division Multiplexing, Frequency Division Multiplexing
  • RRC Radio Resource Control, radio resource control
  • RSRP Reference Signal Receiving Power, reference signal received power
  • SRS Sounding Reference Signal, sounding reference signal
  • DMRS Demodulation Reference Signal, demodulation reference signal
  • CRC Cyclic Redundancy Check, cyclic redundancy check
  • PSDCH Physical Sidelink Discovery Channel, physical side link discovery channel
  • PSBCH Physical Sidelink Broadcast Channel, physical side-line communication broadcast channel
  • TDD Time Division Duplexing, time division duplex
  • FDD Frequency Division Duplexing, Frequency Division Duplexing
  • SIB1 System Information Block Type 1, System Information Block Type 1
  • SLSS Sidelink synchronization Signal, side-line communication synchronization signal
  • PSSS Primary Sidelink Synchronization Signal, the main synchronization signal of side-line communication
  • SSSS Secondary Sidelink Synchronization Signal, side-line communication secondary synchronization signal
  • PCI Physical Cell ID, physical cell ID
  • PSS Primary Synchronization Signal, the primary synchronization signal
  • SSS Secondary Synchronization Signal, secondary synchronization signal
  • BWP BandWidth Part, bandwidth segment/part
  • GNSS Global Navigation Satellite System, Global Navigation Satellite Positioning System
  • SFN System Frame Number, system (wireless) frame number
  • DFN Direct Frame Number, direct frame number
  • SSB Synchronization Signal Block, synchronization system information block
  • EN-DC EUTRA-NR Dual Connection, LTE-NR dual connection
  • MCG Master Cell Group, master cell group
  • SCG Secondary Cell Group, secondary cell group
  • PCell Primary Cell, primary cell
  • SCell Secondary Cell, secondary cell
  • PSFCH Physical Sidelink Feedback Channel, physical sidelink communication feedback channel
  • V2X and sidelink mentioned in this disclosure have the same meaning.
  • V2X in the text can also mean sidelink; similarly, sidelink in the text can also mean V2X, and no specific distinction and limitation will be made in the following text.
  • the resource allocation mode of V2X (sidelink) communication and the transmission mode of V2X (sidelink) communication in the specification of the present disclosure can be replaced equally.
  • PSFCH channel design methods include sequence-based design methods, but are not limited to sequence-based design methods.
  • Out-of-Coverage side-line communication Two UEs performing sidelink communication have no network coverage (for example, the UE cannot detect anything that meets the "cell selection criteria" on the frequency where sidelink communication is required. Cell, which means that the UE has no network coverage).
  • Both UEs performing sidelink communication have network coverage (for example, the UE detects at least one cell that meets the "cell selection criteria" on the frequency that needs sidelink communication, Indicates that the UE has network coverage).
  • Partial-Coverage (Partial-Coverage) side-line communication One UE performing sidelink communication has no network coverage, and the other UE has network coverage.
  • the UE From the UE side, the UE has only two scenarios without network coverage and with network coverage. Part of the network coverage is described from the perspective of sidelink communication.
  • NR V2X existing LTE V2X communication only supports broadcast communication at the physical layer. Broadcast communication is widely used in scenarios such as cellular communication where the base station sends system messages to UEs in the cell.
  • NR V2X's design goals include supporting unicast communication and multicast communication at the physical layer.
  • Unicast communication refers to communication between a sending user equipment (UE) and a single receiving user equipment.
  • Multicast communication generally means that a group of UEs are assigned the same identity (Indentity, ID), the UE sends V2X data to other UEs in the group, and receives V2X data sent by other UEs in the group.
  • ID Identity
  • HARQ stands for hybrid automatic retransmission, which can provide error correction and realize fast retransmission, and is widely used in wireless data communications.
  • HARQ feedback includes HARQ ACK (feedback information indicates correct reception and decoding) and HARQ NACK (feedback information indicates incorrect reception and decoding).
  • HARQ ACK means that the receiving UE correctly receives and decodes the data of the sending UE, so the HARQ ACK is fed back;
  • HARQ NACK means that the receiving UE does not correctly receive and decode the data of the sending UE.
  • the sending UE may retransmit the corresponding data to ensure that the reliability of data communication is improved.
  • HARQ feedback HARQ feedback, or HARQ-ACK
  • HARQ combining HARQ combining mechanism of the physical layer
  • PSFCH physical side communication feedback channel
  • the receiving UE only feeds back HARQ NACK; when the receiving UE decodes the PSCCH correctly and fails to decode the corresponding PSSCH correctly, the receiving UE feeds back NACK; otherwise, the receiving UE does not perform HARQ feedback;
  • All receiving UEs in the group share one PSFCH resource for HARQ NACK feedback.
  • the receiving UE feeds back HARQ ACK and HARQ NACK; when the receiving UE decodes the PSCCH correctly and fails to correctly decode the corresponding PSSCH, the receiving UE feeds back NACK; when the receiving UE decodes the PSCCH correctly and decodes the corresponding PSSCH correctly, Receive UE feedback ACK.
  • Each UE in the group uses a separate PSFCH resource to feed back HARQ ACK and HARQ NACK.
  • a PSFCH resource represents a PSFCH resource mapped in a specific time domain (time domain), frequency domain (frequency domain), and code domain (code domain).
  • a resource pool (resource pool)
  • the configuration of PSFCH in the slots of the resource pool is periodic, and its period can be expressed as N.
  • the possible values of N are 1, or 2, or 4. .
  • the UE obtains the PSFCH configuration period N on the time slots of the resource pool. If HARQ feedback is enabled, the UE can determine that it is on certain N consecutive slots in the resource pool (the number of these N consecutive slots is represented by i, and the range of i is 0, 1,..., N-1 )
  • the PSFCHs carrying HARQ feedback information corresponding to the received PSSCH are all on the same slot s configured with PSFCH resources. In the specification of the present disclosure, N consecutive slots corresponding to slot s are used to represent these N consecutive slots.
  • the UE can determine whether the slot where the PSSCH is received is the i+1th of the N consecutive slots corresponding to slot s. Determine the value of i.
  • K represents the time domain interval from the received PSSCH to the corresponding PSFCH, where, optionally, the unit of K is a time slot.
  • ⁇ represents the cyclic shift of the sequence. Different cyclic shifts can generate different sequences (the sequence length is the same), that is, different cyclic shifts represent different PSFCH resources. Specifically, when the time domain and frequency domain resources of the two PSFCHs are the same, if the cyclic shift ⁇ of the PSFCH is different (different code domain resources), the two PSFCHs represent two different PSFCH resources.
  • r ⁇ (n) On a given (or determined) time-frequency resource, when the initial sequence r(n) is given (or determined), the number of possible values of ⁇ is That is, r ⁇ (n) may produce at most A sequence, which means that there is at most on the given (or determined) time-frequency resource Different PSFCH resources.
  • the length of the sequence is Therefore, when a certain time-frequency resource is given, the number of possible values of ⁇ is That is, there are 12 different PSFCH resources. If the UE needs to feed back 1-bit HARQ feedback information, then the user equipment UE needs to occupy two different PSFCH resources for sending HARQ ACK and HARQ NACK respectively.
  • each UE feeds back 1 bit of HARQ information
  • 3 different user equipments can be multiplexed to perform HARQ feedback on the given time-frequency resource.
  • the numbering of the PSFCH resources involved in the first to the twelfth embodiments of this disclosure specification is optionally based on the cyclic shift priority criterion, for example, on a certain time-frequency resource (an OFDM symbol, On one PSFCH occasion on consecutive PRBs), the number of PSFCH resources is Each PSFCH resource corresponds to a cyclic shift, and the difference between the cyclic shifts of the PSFCH resources with adjacent resource numbers is 1; on the same OFDM symbol, the next (next) in the frequency domain (PRB number increases) The number of PSFCH resources corresponding to PSFCH occasion is And so on.
  • the numbering of the PSFCH resource is based on the above method and is numbered according to the principle of OFDM symbol numbering from small to large, for example
  • the PSFCH resources on OFDM symbol 12 are numbered first, and then the PSFCH resources on OFDM symbol 13 are numbered, that is, the number of PSFCH resources on OFDM symbol 13 is the PSFCH resource number on OFDM symbol 12 in increasing order (increasing order) .
  • the identifier of the UE in the multicast groupcast is represented by m.
  • an optional method for user equipment (sending UE, or receiving UE, or sending UE and receiving UE) in multicast to determine m is to set the layer of all (or, some) UEs in the group 2
  • the ID (Layer-2 ID, optionally, 24 bits) is arranged in ascending or descending order
  • the identifier m in the group represents the (m+1)th (or, m)th UE in the above arrangement
  • Another optional method is to arrange all (or, some) UEs in the group with Layer-1 ID (Layer-1 ID, optionally 8 bits, or 16 bits, or 24 bits) in ascending or descending order ,
  • the identifier m in the group indicates the (m+1)th (or, m)th UE corresponding to the above arrangement.
  • the UE obtains the PSFCH configuration period N on the time slot slots of the resource pool. If HARQ feedback is enabled, the UE can determine that it is on certain N consecutive slots in the resource pool (the number of these N consecutive slots is represented by i, and the range of i is 0, 1,..., N-1 )
  • the PSFCHs carrying HARQ feedback information corresponding to the received PSSCH are all in the same slot configured with PSFCH resources.
  • N consecutive slots corresponding to slots are used to represent these N consecutive slots, and the UE can determine whether the slot where the PSSCH is received is the i+1th of the N consecutive slots corresponding to slot s. Determine the value of i.
  • PSFCH occasion means in a specific time domain (optionally, 1 OFDM symbol), frequency domain resources (optionally, PRB) on all PSFCHs. Among them, PSFCH occupies the frequency domain A continuous PRB occupies 1 OFDM symbol in the time domain.
  • Fig. 1 is a schematic diagram showing LTE V2X UE side-line communication.
  • UE1 sends sideline communication control information (SCI format 1) to UE2, which is carried by the physical layer channel PSCCH.
  • SCI format 1 includes PSSCH scheduling information, such as PSSCH frequency domain resources.
  • UE1 sends sideline communication data to UE2, which is carried by the physical layer channel PSSCH.
  • the PSCCH and the corresponding PSSCH adopt a frequency division multiplexing mode, that is, the PSCCH and the corresponding PSSCH are located on the same subframe in the time domain and are located on different PRBs in the frequency domain.
  • the specific design methods of PSCCH and PSSCH are as follows:
  • PSCCH occupies one subframe in the time domain and two consecutive PRBs in the frequency domain.
  • the initialization of the scrambling sequence uses a predefined value 510.
  • PSCCH can carry SCI format 1, where SCI format 1 contains at least frequency domain resource information of PSSCH. For example, for the frequency domain resource indicator field, SCI format 1 indicates the starting sub-channel number and the number of consecutive sub-channels of the PSSCH corresponding to the PSCCH.
  • the PSSCH occupies a subframe in the time domain, and the corresponding PSCCH adopts frequency division multiplexing (FDM).
  • the PSSCH occupies one or more continuous sub-channels in the frequency domain.
  • the sub-channel represents n subCHsize consecutive PRBs in the frequency domain.
  • the n subCHsize is configured by the RRC parameter, and the number of starting sub-channels and consecutive sub-channels It is indicated by the frequency domain resource indicator field of SCI format 1.
  • FIG. 2 shows two resource allocation methods of LTE V2X, which are called base station scheduling-based resource allocation (Transmission Mode 3) and UE-sensing-based resource allocation (Transmission Mode 4).
  • the base station can configure the UE's resource allocation mode through UE-level dedicated RRC signaling (dedicated RRC signaling) SL-V2X-ConfigDedicated, or called the UE's transmission mode , specifically:
  • Resource allocation mode based on base station scheduling indicates that the frequency domain resources used for sidelink communication come from the scheduling of the base station.
  • Transmission mode 3 includes two scheduling methods, namely dynamic scheduling and semi-persistent scheduling (SPS).
  • SPS semi-persistent scheduling
  • the UL grant (DCI format 5A) includes the frequency domain resources of the PSSCH, and the CRC of the PDCCH or EPDCCH carrying the DCI format 5A is scrambled by the SL-V-RNTI.
  • SPS semi-persistent scheduling the base station configures one or more (at most 8) configured scheduling grants through IE: SPS-ConfigSL-r14, and each configured scheduling grant contains a scheduling grant number (index) and scheduling Licensed resource period.
  • the UL grant (DCI format 5A) includes frequency domain resources of the PSSCH, as well as indication information (3bits) of the scheduling permission number and indication information of SPS activation (activate) or release (or deactivation).
  • indication information (3bits) of the scheduling permission number and indication information of SPS activation (activate) or release (or deactivation).
  • the CRC of the PDCCH or EPDCCH carrying the DCI format 5A is scrambled by SL-SPS-V-RNTI.
  • the RRC signaling SL-V2X-ConfigDedicated when the RRC signaling SL-V2X-ConfigDedicated is set to scheduled-r14, it means that the UE is configured in a transmission mode based on base station scheduling.
  • the base station configures SL-V-RNTI or SL-SPS-V-RNTI through RRC signaling, and through PDCCH or EPDCCH (DCI format 5A, CRC uses SL-V-RNTI scrambling or SL-SPS-V-RNTI scrambling) ) Send an uplink scheduling permission UL grant to the UE.
  • the uplink scheduling grant UL grant includes at least the scheduling information of the PSSCH frequency domain resources in the sidelink communication.
  • the UE When the UE successfully monitors the PDCCH or EPDCCH scrambled by SL-V-RNTI or SL-SPS-V-RNTI, it uses the PSSCH frequency domain resource indicator field in the uplink scheduling grant UL grant (DCI format 5A) as the PSCCH (SCI format 1) indicates the frequency domain resources of the PSSCH, and sends PSCCH (SCI format 1) and the corresponding PSSCH.
  • DCI format 5A the PSSCH frequency domain resource indicator field in the uplink scheduling grant UL grant
  • the UE receives the SL-SPS-V-RNTI scrambled DCI format 5A on the downlink subframe n. If the DCI format 5A contains indication information of SPS activation, the UE determines the frequency domain resources of the PSSCH according to the indication information in the DCI format 5A, and determines the time domain resources of the PSSCH (PSSCH transmission subframe) according to information such as subframe n.
  • Resource allocation method based on UE sensing indicates that the resources used for sidelink communication are based on the UE's sensing process of the candidate available resource set.
  • RRC signaling SL-V2X-ConfigDedicated is set to ue-Selected-r14, it means that the UE is configured in the transmission mode based on UE sensing.
  • the base station configures the available transmission resource pool, and the UE determines the PSSCH sidelink transmission resource in the transmission resource pool (resource pool) according to certain rules (see the LTE V2X UE sensing process section for detailed process descriptions) , And send PSCCH (SCI format 1) and the corresponding PSSCH.
  • each slot contains 14 OFDM symbols, namely
  • FIG. 3 is a basic flowchart showing the method executed by the user equipment in each of the first to twelfth embodiments of the present disclosure.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes a feedback interval K (the interval from the PSSCH to the corresponding PSFCH).
  • the unit of K is a time slot.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the SCI sent by the other user equipment contains indication information that the SCI and the corresponding PSSCH are unicast transmission.
  • the implementation of the instruction information includes but is not limited to the following:
  • the SCI includes 2-bit indication field indication information, or 1-bit indication field indication information, indicating that the SCI and the corresponding PSSCH are unicast transmission.
  • the ID of the other user equipment contained in the SCI, and/or the ID of the user equipment, and/or the transmitted session (or link) ID indicate the SCI and the corresponding The PSSCH is unicast transmission.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for side-line communication in the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ (2 or 12n) + i ⁇ N subchannel ⁇ (2 or, 12n), the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or, 12n) + i ⁇ N subchannel ⁇ (2 or, 12n)+1, or, Optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or, 12n)+i ⁇ N subchannel ⁇ (2 or, 12n)+12n/2.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or, 12n) + i ⁇ N subchannel ⁇ (2 or, 12n), and optionally, the user equipment determines to feed back
  • the number of the PSFCH resource of HARQ ACK is Index startSubchannel ⁇ (2 or 12n)+i ⁇ N subchannel ⁇ (2 or, 12n)+1, or, optionally, the user equipment determines the number of the PSFCH resource for feeding back HARQ ACK
  • the number is Index startSubchannel ⁇ (2 or 12n) + i ⁇ N subchannel ⁇ (2 or 12n) + 12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ N subchannel ⁇ (4 or, 12n), optionally, the user equipment determines that the number of the PSFCH resource for which "01" is fed back is Index startSubchannel ⁇ (4 or, 12n) + i ⁇ N subchannel ⁇ (4 or, 12n )+1, or, optionally, the user equipment determines that the number of the PSFCH resource for which "01” is fed back is Index startSubchannel ⁇ (4 or, 12n) + i ⁇ N subchannel ⁇ (4 or, 12n) + 12n/4
  • the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel ⁇ (4 or, 12n) + i ⁇ N subchannel ⁇ (4 or, 12n) + 2, or, optionally, The user
  • the user The device determines that the number of the PSFCH resource for which "10" is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ N subchannel ⁇ (4 or 12n) + 3, or, optionally, the user equipment determines to feed back "10"
  • the numbers of the PSFCH resources corresponding to "00", “01", “11” and “10” include but are not limited to the foregoing implementation manners.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is based on a slot in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the SCI sent by the other user equipment contains indication information that the SCI and the corresponding PSSCH are unicast transmission.
  • the implementation of the instruction information includes but is not limited to the following:
  • the SCI includes 2-bit indication field indication information, or 1-bit indication field indication information, indicating that the SCI and the corresponding PSSCH are unicast transmission.
  • the ID of the other user equipment contained in the SCI, and/or the ID of the user equipment, and/or the transmitted session (or link) ID indicate the SCI and the corresponding The PSSCH is unicast transmission.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for side-line communication in the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ (2 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, The user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines the PSFCH for feeding back HARQ ACK The number of the resource is Index startSubchannel ⁇ (2 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, the user equipment determines that the number of the PSFCH resource for which HARQ ACK is fed back is Index startSubchannel ⁇ (2 or , 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines the number Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N+1 of the PSFCH resource for which "01" is fed back, or, optionally The user equipment determines the number Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N+12n/4 of the PSFCH resource for feeding back "01".
  • the user equipment determines to feed back "11"
  • the number of the PSFCH resource is Index startSubchannel ⁇ (4 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+2, or, optionally, the user equipment determines the number of the PSFCH resource for which "11" is fed back
  • the user equipment determines that the number of the PSFCH resource for which "10” is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N+3, or, optionally, the user equipment determines Feedback "10" PSFCH resource number
  • the numbers of the PSFCH resources corresponding to "00", "01", “11” and “10” include but are not limited to the foregoing implementation manners.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the side-line communication in the resource pool is unicast.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ (2 or 12n) + i ⁇ N subchannel ⁇ (2 or, 12n), the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or, 12n) + i ⁇ N subchannel ⁇ (2 or, 12n)+1, or, Optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or, 12n)+i ⁇ N subchannel ⁇ (2 or, 12n)+12n/2.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or, 12n) + i ⁇ N subchannel ⁇ (2 or, 12n), and optionally, the user equipment determines to feed back
  • the number of the PSFCH resource of HARQ ACK is Index startSubchannel ⁇ (2 or 12n)+i ⁇ N subchannel ⁇ (2 or, 12n)+1, or, optionally, the user equipment determines the number of the PSFCH resource for feeding back HARQ ACK
  • the number is Index startSubchannel ⁇ (2 or 12n) + i ⁇ N subchannel ⁇ (2 or 12n) + 12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ N subchannel ⁇ (4 or, 12n), optionally, the user equipment determines that the number of the PSFCH resource for which "01" is fed back is Index startSubchannel ⁇ (4 or, 12n)+i ⁇ N subchannel ⁇ (4 or, 12n )+1, or, optionally, the user equipment determines that the number of the PSFCH resource for which "01” is fed back is Index startSubchannel ⁇ (4 or, 12n) + i ⁇ N subchannel ⁇ (4 or, 12n) + 12n/4
  • the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel ⁇ (4 or, 12n) + i ⁇ N subchannel ⁇ (4 or, 12n) + 2, or, optionally, The
  • the user The device determines that the number of the PSFCH resource for which "10" is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ N subchannel ⁇ (4 or 12n) + 3, or, optionally, the user equipment determines to feed back "10"
  • the numbers of the PSFCH resources corresponding to "00", “01", “11” and “10” include but are not limited to the foregoing implementation manners.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the side-line communication in the resource pool is unicast.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ (2 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, The user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ (2 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines the PSFCH for feeding back HARQ ACK The number of the resource is Index startSubchannel ⁇ (2 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, the user equipment determines that the number of the PSFCH resource for which HARQ ACK is fed back is Index startSubchannel ⁇ (2 or , 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines the number Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N+1 of the PSFCH resource for which "01" is fed back, or, optionally The user equipment determines the number Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N+12n/4 of the PSFCH resource for feeding back "01".
  • the user equipment determines to feed back "11"
  • the number of the PSFCH resource is Index startSubchannel ⁇ (4 or 12n)+i ⁇ PSFCHoccasion ⁇ 12n/N+2, or, optionally, the user equipment determines the number of the PSFCH resource for which "11" is fed back
  • the user equipment determines that the number of the PSFCH resource for which "10” is fed back is Index startSubchannel ⁇ (4 or 12n) + i ⁇ PSFCHoccasion ⁇ 12n/N+3, or, optionally, the user equipment determines Feedback "10" PSFCH resource number
  • the numbers of the PSFCH resources corresponding to "00", "01", “11” and “10” include but are not limited to the foregoing implementation manners.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the receiving UE only feeds back HARQ NACK.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the SCI sent by the other user equipment contains indication information indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the implementation of the instruction information includes but is not limited to the following:
  • the SCI includes 2-bit indication field indication information, or 1-bit indication field indication information, indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the ID of the other user equipment contained in the SCI, and/or the ID of the user equipment, and/or the transmitted session (or link) ID, indicating the SCI and the corresponding The PSSCH is multicast (groupcast) transmission.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel + i ⁇ N subchannel .
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel + i ⁇ N subchannel , or may Optionally, the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel + i ⁇ N subchannel .
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ 12n+i ⁇ N subchannel ⁇ 12n.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the receiving UE only feeds back HARQ NACK.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the SCI sent by the other user equipment contains indication information indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the implementation of the instruction information includes but is not limited to the following:
  • the SCI includes 2-bit indication field indication information, or 1-bit indication field indication information, indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the ID of the other user equipment contained in the SCI, and/or the ID of the user equipment, and/or the transmitted session (or link) ID, indicating the SCI and the corresponding The PSSCH is multicast (groupcast) transmission.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel + i ⁇ PSFCHoccasion ⁇ 12n/N,
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel + i ⁇ PSFCHoccasion ⁇ 12n/N, Or, optionally, the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel + i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ 12n+i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the side-line communication in the resource pool is a multicast groupcast.
  • the resource pool configuration information includes configuration information that the receiving UE only feeds back HARQ NACK.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel + i ⁇ N subchannel .
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel + i ⁇ N subchannel , or may Optionally, the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel + i ⁇ N subchannel .
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ 12n+i ⁇ N subchannel ⁇ 12n.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the side-line communication in the resource pool is a multicast groupcast.
  • the resource pool configuration information includes configuration information that the receiving UE only feeds back HARQ NACK.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines the resource of the PSFCH according to the i and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel + i ⁇ PSFCHoccasion ⁇ 12n/N,
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel + i ⁇ PSFCHoccasion ⁇ 12n/N, Or, optionally, the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel + i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ 12n+i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information for receiving HARQ ACK and HARQ NACK feedback from the UE.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the SCI sent by the other user equipment contains indication information indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the implementation of the instruction information includes but is not limited to the following:
  • the SCI includes 2-bit indication field indication information, or 1-bit indication field indication information, indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the ID of the other user equipment contained in the SCI, and/or the ID of the user equipment, and/or the transmitted session (or link) ID, indicating the SCI and the corresponding The PSSCH is multicast (groupcast) transmission.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain (the number of OFDM symbols is expressed as N sym ) Contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines an identifier within the group, which is represented by m.
  • the user equipment determines the resource of the PSFCH according to the i, and/or the m, and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable
  • variable Capacity UE is included in the side-line communication configuration information, or in the pre-configuration information of the user equipment, or a predefined value.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE , optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +1, or, optionally, the user equipment It is determined that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ N subchannel ⁇ Capacity UE + 12n/2.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE .
  • the user equipment determines the number of the PSFCH resource for feeding back HARQ ACK. Number Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +1, or, optionally, the user equipment determines the number of the PSFCH resource for which HARQ ACK is fed back Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE , optionally, the user equipment determines that the number of the PSFCH resource for which "01" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +1, or, optionally, the The user equipment determines that the number of the PSFCH resource fed back "01” is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +12n/4.
  • the user equipment determines the number of the PSFCH resource fed back "11" The number is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +2, or, optionally, the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +2 ⁇ 12n/4, optionally, the user equipment determines that the number of the PSFCH resource for which "10” is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +3, Or, optionally, the user equipment determines that the number of the PSFCH resource for which "10” is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +3 ⁇ 12n/4.
  • the numbers of the PSFCH resources corresponding to "00", "01", "11” and “10” include but
  • the user equipment does not feed back HARQ information, or the user equipment assumes that HARQ feedback is disabled (disable) .
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH, and optionally, the unit of K is a time slot.
  • the resource pool configuration information includes configuration information for receiving HARQ ACK and HARQ NACK feedback from the UE.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the SCI sent by the other user equipment contains indication information indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the implementation of the instruction information includes but is not limited to the following:
  • the SCI includes 2-bit indication field indication information, or 1-bit indication field indication information, indicating that the SCI and the corresponding PSSCH are groupcast transmissions.
  • the ID of the other user equipment contained in the SCI, and/or the ID of the user equipment, and/or the transmitted session (or link) ID, indicating the SCI and the corresponding The PSSCH is multicast (groupcast) transmission.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain (the number of OFDM symbols is expressed as N sym ) Contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines an identifier within the group, which is represented by m.
  • the user equipment determines the resource of the PSFCH according to the i, and/or the m, and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable
  • variable Capacity UE is included in the sideline communication configuration information, or, in the pre-configuration information of the user equipment, or a predefined value.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, the user equipment It is determined that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2. Or, optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the user equipment determines the number of the PSFCH resource for feeding back HARQ ACK.
  • the number is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, the user equipment determines that the number of the PSFCH resource that feeds back HARQ ACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines the number Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+1 of the PSFCH resource for which "01" is fed back, or, optionally, the user The device determines that the number of the PSFCH resource of "01" is fed back Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/4.
  • the user equipment determines that the number of the PSFCH resource of "11" is fed back Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+2, or, optionally, the user equipment determines the number of the PSFCH resource for which "11" is fed back Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+2 ⁇ 12n/4.
  • the user equipment determines that the number of the PSFCH resource for which "10" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+3, or, Optionally, the user equipment determines the number Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+3 ⁇ 12n/4 of the PSFCH resource for which "10" is fed back.
  • the numbers of the PSFCH resources corresponding to "00", “01", “11” and “10” include but are not limited to the foregoing implementation manners.
  • the user equipment does not feed back HARQ information, or the user equipment assumes that HARQ feedback is disabled (disable) .
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the side-line communication in the resource pool is a multicast groupcast.
  • the resource pool configuration information includes configuration information for receiving HARQ ACK and HARQ NACK feedback from the UE.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain (the number of OFDM symbols is expressed as N sym ) Contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines an identifier within the group, which is represented by m.
  • the user equipment determines the resource of the PSFCH according to the i, and/or the m, and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable
  • variable Capacity UE is included in the side-line communication configuration information, or in the pre-configuration information of the user equipment, or a predefined value.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE , optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +1, or, optionally, the user equipment It is determined that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ N subchannel ⁇ Capacity UE + 12n/2.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE .
  • the user equipment determines the number of the PSFCH resource for feeding back HARQ ACK Number Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +1, or, optionally, the user equipment determines the number of the PSFCH resource for which HARQ ACK is fed back Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE , optionally, the user equipment determines that the number of the PSFCH resource for which "01" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +1, or, optionally, the The user equipment determines that the number of the PSFCH resource fed back "01” is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +12n/4.
  • the user equipment determines the number of the PSFCH resource fed back "11" The number is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +2, or, optionally, the user equipment determines that the number of the PSFCH resource for which "11" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +2 ⁇ 12n/4, optionally, the user equipment determines that the number of the PSFCH resource for which "10” is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +3, Or, optionally, the user equipment determines that the number of the PSFCH resource for which "10” is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ N subchannel ⁇ Capacity UE +3 ⁇ 12n/4.
  • the numbers of the PSFCH resources corresponding to "00", "01", "11” and “10” include but
  • the user equipment does not feed back HARQ information, or the user equipment assumes that HARQ feedback is disabled (disable) .
  • the method executed by the user equipment may include:
  • step S101 the side-line communication user equipment determines the configuration information of the side-line communication sidelink.
  • the side-line communication configuration information is configuration information sent by the base station through RRC signaling. or,
  • the side-line communication configuration information is included in pre-configuration information of the user equipment.
  • the side-line communication configuration information includes resource pool configuration information.
  • the resource pool configuration information includes subchannel size information SubchannelSize.
  • the information of the sub-channel size is in PRB.
  • the resource pool configuration information includes information on the number of subchannels N subchannel .
  • the resource pool configuration information includes the period N of the PSFCH.
  • the period of the PSFCH is in units of slots in the resource pool.
  • the resource pool configuration information includes the interval K from the PSSCH to the corresponding PSFCH.
  • the unit of K is a time slot.
  • the resource pool configuration information includes configuration information that the side-line communication in the resource pool is a multicast groupcast.
  • the resource pool configuration information includes configuration information for receiving HARQ ACK and HARQ NACK feedback from the UE.
  • step S102 the user equipment receives the side-line communication control information SCI and the corresponding PSSCH sent by other user equipment.
  • the user equipment determines the number Index startSubchannel of the start subchannel of the PSSCH according to the SCI.
  • step S103 the user equipment determines the PSFCH resource corresponding to the PSSCH.
  • the time slot where the last OFDM symbol of the PSSCH is located is marked as slot PSSCH .
  • the user equipment according to the slot PSSCH , and/or the K, and/or the N, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool) determines the time slot slots where the PSFCH corresponding to the PSSCH is located.
  • a specific implementation manner is that the interval between the time slot slot s where the PSFCH corresponding to the PSSCH is located and the time slot where the PSSCH is located (using slot as a unit) is not less than the K, and satisfies
  • the time slot slot s is not less than the smallest positive integer in the K, and the time slot slot s contains a configured PSFCH resource whose period is the N.
  • the user equipment according to the slot, and/or the N, and/or the K, and/or the resource pool configuration information other than the N and the K At least one piece of information (optionally, configuration information of time-domain resources for communication on the side of the resource pool), determining N consecutive time slots corresponding to the slots.
  • the PSFCH corresponding to the PSSCH received in the N consecutive time slots is on the slot in the time domain.
  • the user equipment determines the number of PSFCH occasions (opportunities) on the time slot slots according to the resource pool configuration information, which is expressed as PSFCH occasion.
  • only one OFDM symbol in the time domain contains the PSFCH occasion, or, optionally, more than one OFDM symbol in the time domain (the number of OFDM symbols is expressed as N sym ) Contains the PSFCH occasion.
  • the user equipment determines the number of the PSFCH resource on the time slot slot s, which is represented as number 0 to number PSFCHoccasion*12n-1.
  • the cyclic shift corresponding to the PSFCH resource number k+1 is equal to the cyclic shift corresponding to the PSFCH resource number k plus 1.
  • k is a non-negative integer.
  • the user equipment determines an identifier within the group, which is represented by m.
  • the user equipment determines the resource of the PSFCH according to the i, and/or the m, and/or the Index startSubchannel , or determines the resource number of the PSFCH.
  • the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable Or, optionally, the user equipment determines the variable
  • variable Capacity UE is included in the side-line communication configuration information, or in the pre-configuration information of the user equipment, or a predefined value.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ ACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, the user equipment It is determined that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2. Or, optionally, the user equipment determines that the number of the PSFCH resource for feeding back HARQ NACK is Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N.
  • the user equipment determines the number of the PSFCH resource for feeding back HARQ ACK.
  • the number is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+1, or, optionally, the user equipment determines that the number of the PSFCH resource that feeds back HARQ ACK is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/2.
  • the user equipment determines that the number of the PSFCH resource for which "00" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N, optionally, the user equipment determines the number Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+1 of the PSFCH resource for which "01" is fed back, or, optionally, the user The device determines that the number of the PSFCH resource of "01" is fed back Index startSubchannel ⁇ Capacity UE + m+i ⁇ PSFCHoccasion ⁇ 12n/N+12n/4.
  • the user equipment determines that the number of the PSFCH resource of "11" is fed back as Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+2, or, optionally, the user equipment determines the number of the PSFCH resource for which "11" is fed back Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+2 ⁇ 12n/4.
  • the user equipment determines that the number of the PSFCH resource for which "10" is fed back is Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+3, or, Optionally, the user equipment determines the number Index startSubchannel ⁇ Capacity UE +m+i ⁇ PSFCHoccasion ⁇ 12n/N+3 ⁇ 12n/4 of the PSFCH resource for which "10" is fed back.
  • the numbers of the PSFCH resources corresponding to "00", “01", “11” and “10” include but are not limited to the foregoing implementation manners.
  • the user equipment does not feed back HARQ information, or the user equipment assumes that HARQ feedback is disabled (disable) .
  • FIG. 4 is a basic flowchart showing the method executed by the user equipment in each of the thirteenth and fourteenth embodiments of the present disclosure.
  • the method executed by the user equipment includes:
  • step S201 the side-line communication user equipment determines the configuration information of the side-line communication resource pool resource pool.
  • the side-line communication resource pool configuration information is configuration information sent by the base station through RRC signaling
  • the side-line communication resource pool configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication resource pool configuration information includes PSFCH configuration information.
  • the PSFCH configuration information indicates the start OFDM symbol s start of the PSFCH resource, or the number of OFDM symbols n ofdm of the PSFCH resource.
  • step S202 the user equipment determines the time domain resources of the PSFCH in the resource pool.
  • the UE determines that the time domain resource of the PSFCH is from the OFDM symbol s start to the OFDM symbol Alternatively, the UE determines that the time domain resource of the PSFCH is from OFDM symbol s start to OFDM symbol
  • the UE determines that the time domain resource of the PSFCH is from the OFDM symbol To OFDM symbol Or, the UE determines that the time domain resource of the PSFCH is from the OFDM symbol To OFDM symbol
  • the method executed by the user equipment includes:
  • step S201 the side-line communication user equipment determines the configuration information of the side-line communication resource pool resource pool.
  • the side-line communication resource pool configuration information is configuration information sent by the base station through RRC signaling
  • the side-line communication resource pool configuration information is included in pre-configuration (Pre-configuration) information of the user equipment.
  • the side-line communication resource pool configuration information includes PSFCH configuration information.
  • the configuration information of the PSFCH includes configuration information of at least one PSFCH format.
  • the at least one PSFCH format includes a first PSFCH format, and the first PSFCH format occupies one OFDM symbol in the time domain.
  • the at least one PSFCH format includes a second PSFCH format, and the second PSFCH format occupies p OFDM symbols in the time domain, and p is a positive integer greater than or equal to 1.
  • the configuration information of the first PSFCH format indicates the start OFDM symbol s start1 of the first PSFCH format resource, or the number of OFDM symbols n ofdm1 of the PSFCH resource.
  • the configuration information of the second PSFCH format indicates the start OFDM symbol s start2 of the second PSFCH format resource, or the number of OFDM symbols n ofdm2 of the PSFCH resource.
  • step S202 the user equipment determines the time domain resources of the PSFCH in the resource pool.
  • the UE determines the first PSFCH format The time domain resource is from OFDM symbol s start1 to OFDM symbol s start2 -1, and the UE determines that the time domain resource of the second PSFCH format is from OFDM symbol s start2 to OFDM symbol Alternatively, the UE determines that the time domain resource of the first PSFCH format is from OFDM symbol s start1 to OFDM symbol s start2 -1, and the UE determines that the time domain resource of the second PSFCH format is from OFDM symbol s start2 to OFDM symbol s start2.
  • the UE determines that the time domain resource of the second PSFCH format ranges from OFDM symbol s start2 to OFDM symbol s start1 -1, and the UE determines that the time domain resource of the first PSFCH format ranges from OFDM symbol s start1 to OFDM symbol s start1.
  • the UE determines that the time domain resource of the second PSFCH format ranges from OFDM symbol s start2 to OFDM symbol s start1 -1, and the UE determines that the time domain resource of the first PSFCH format ranges from OFDM symbol s start1 to OFDM symbol s start1.
  • the UE determines that the first domain resource PSFCH Slave OFDM symbol n ofdm1 -n ofdm2 to OFDM symbol
  • the UE determines that the time domain resource of the second PSFCH is from the OFDM symbol To OFDM symbol
  • the UE determines that the time domain resource of the first PSFCH is from an OFDM symbol To OFDM symbol
  • the UE determines that the time domain resource of the second PSFCH is from the OFDM symbol n ofdm2 -1 to OFDM symbol
  • the UE determines that the time domain resource of the second PSFCH is from the OFDM symbol To OFDM symbol
  • the UE determines that the time domain resource of the first PSFCH is from the OFDM symbol To OFDM symbol
  • the UE determines that the time domain resource of the second PSFCH is from the OFDM symbol To OFDM symbol
  • the UE determines that the time domain resource of the second PSFCH is from the OFDM symbol To OFDM symbol
  • the UE determines that the time domain resource of the
  • FIG. 5 is a block diagram showing the user equipment UE involved in the present disclosure.
  • the user equipment UE80 includes a processor 801 and a memory 802.
  • the processor 801 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 802 may include, for example, volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memories.
  • the memory 802 stores program instructions. When the instruction is executed by the processor 801, it can execute the above-mentioned method executed by the user equipment described in detail in this disclosure.
  • the method and related equipment of the present disclosure have been described above in conjunction with preferred embodiments. Those skilled in the art can understand that the methods shown above are only exemplary, and the various embodiments described above can be combined with each other without conflict.
  • the method of the present disclosure is not limited to the steps and sequence shown above.
  • the network nodes and user equipment shown above may include more modules, for example, may also include modules that can be developed or developed in the future and can be used for base stations, MMEs, or UEs, and so on.
  • the various identifiers shown above are only exemplary rather than restrictive, and the present disclosure is not limited to specific information elements as examples of these identifiers. Those skilled in the art can make many changes and modifications based on the teaching of the illustrated embodiment.
  • the foregoing embodiments of the present disclosure may be implemented by software, hardware, or a combination of both software and hardware.
  • the various components inside the base station and user equipment in the above embodiment can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processing Device, application specific integrated circuit (ASIC), field programmable gate array (FPGA), programmable logic device (CPLD), etc.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD programmable logic device
  • base station may refer to a mobile communication data and control switching center with larger transmission power and wider coverage area, including functions such as resource allocation and scheduling, data reception and transmission.
  • User equipment may refer to a user's mobile terminal, for example, including mobile phones, notebooks, and other terminal devices that can communicate with base stations or micro base stations wirelessly.
  • the embodiments of the present disclosure disclosed herein may be implemented on a computer program product.
  • the computer program product is a product that has a computer-readable medium on which computer program logic is encoded, and when executed on a computing device, the computer program logic provides related operations to implement The above technical solution of the present disclosure.
  • the computer program logic When executed on at least one processor of the computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present disclosure.
  • This kind of arrangement of the present disclosure is typically provided as software, code and/or other data structures arranged or encoded on a computer-readable medium such as an optical medium (such as a CD-ROM), a floppy disk, or a hard disk, or as one or more Firmware or microcode on a ROM or RAM or PROM chip, or downloadable software images, shared databases, etc. in one or more modules.
  • Software or firmware or such a configuration may be installed on the computing device, so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present disclosure.
  • each functional module or each feature of the base station device and the terminal device used in each of the foregoing embodiments may be implemented or executed by a circuit, and the circuit is usually one or more integrated circuits.
  • Circuits designed to perform the functions described in this specification can include general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC) or general-purpose integrated circuits, field programmable gate arrays (FPGA), or other Programming logic devices, discrete gates or transistor logic, or discrete hardware components, or any combination of the above devices.
  • the general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine.
  • the general-purpose processor or each circuit described above may be configured by a digital circuit, or may be configured by a logic circuit.
  • the present disclosure may also use integrated circuits obtained using the advanced technologies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开提供了一种由用户设备执行的方法以及用户设备，所述方法包括：接收侧行通信的配置信息；接收其他用户设备发送的侧行通信控制信息SCI和对应的物理侧行通信共享信道PSSCH；确定所述物理侧行通信共享信道PSSCH对应的物理侧行通信反馈信道PSFCH的传输时隙S；确定和所述时隙S相关联的N个侧行通信时隙，其中N是正整数。

Description

由用户设备执行的方法以及用户设备 技术领域
本公开涉及无线通信技术领域，具体涉及由用户设备执行的方法、由基站执行的方法以及相应的用户设备。
背景技术
在传统的蜂窝网络中，所有的通信都必须经过基站。不同的是，D2D通信(Device-to-Device communication，设备到设备间直接通信)是指两个用户设备之间不经过基站或者核心网的转发而直接进行的通信方式。在2014年3月第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)的RAN#63次全会上，关于利用LTE设备实现临近D2D通信业务的研究课题获得批准(参见非专利文献1)。LTE Release 12 D2D引入的功能包括：
1)LTE网络覆盖场景下临近设备之间的发现功能(Discovery)；
2)临近设备间的直接广播通信(Broadcast)功能；
3)高层支持单播(Unicast)和组播(Groupcast)通信功能。
在2014年12月的3GPP RAN#66全会上，增强的LTE eD2D(enhanced D2D)的研究项目获得批准(参见非专利文献2)。LTE Release 13 eD2D引入的主要功能包括：
1)无网络覆盖场景和部分网络覆盖场景的D2D发现；
2)D2D通信的优先级处理机制。
基于D2D通信机制的设计，在2015年6月3GPP的RAN#68次全会上，批准了基于D2D通信的V2X可行性研究课题。V2X表示Vehicle to everything，希望实现车辆与一切可能影响车辆的实体信息交互，目的是减少事故发生，减缓交通拥堵，降低环境污染以及提供其他信息服务。V2X的应用场景主要包含4个方面：
1)V2V，Vehicle to Vehicle，即车-车通信；
2)V2P，Vehicle to Pedestrian，即车给行人或非机动车发送警告；
3)V2N，Vehicle to Network，即车辆连接移动网络；
4)V2I，Vehicle to Infrastructure，即车辆与道路基础设施等通信。
3GPP将V2X的研究与标准化工作分为3个阶段。第一阶段于2016年9月完成，主要聚焦于V2V，基于LTE Release 12和Release 13 D2D(也可称为sidelink侧行通信)，即邻近通信技术制定(参见非专利文献3)。V2X stage 1引入了一种新的D2D通信接口，称为PC5接口。PC5接口主要用于解决高速(最高250公里/小时)及高节点密度环境下的蜂窝车联网通信问题。车辆可以通过PC5接口进行诸如位置、速度和方向等信息的交互，即车辆间可通过PC5接口进行直接通信。相较于D2D设备间的临近通信，LTE Release 14 V2X引入的功能主要包含：
1)更高密度的DMRS以支持高速场景；
2)引入子信道(sub-channel)，增强资源分配方式；
3)引入具有半静态调度(semi-persistent)的用户设备感知(sensing)机制。
V2X研究课题的第二阶段归属于LTE Release 15研究范畴(参见非专利文献4)，引入的主要特性包含高阶64QAM调制、V2X载波聚合、短TTI传输，同时包含发射分集的可行性研究。
在2018年6月3GPP RAN#80全会上，相应的第三阶段基于5G NR网络技术的V2X可行性研究课题(参见非专利文献5)获得批准。该课题的研究计划中包括支持侧行通信单播(sidelink unicast)，侧行通信组播(sidelink groupcast)和侧行通信广播(sidelink broadcast)的研究目标。
在2018年10月3GPP RAN1#94bis的会议(参见非专利文献6)结论中，对于侧行通信的单播和组播，在物理层确定支持HARQ反馈(HARQ feedback)和HARQ合并(HARQ combining)。
在2018年11月3GPP RAN1#95的会议(参见非专利文献7)结论中，引入物理侧行通信反馈信道PSFCH用于携带侧行通信中的HARQ反馈信息，如HARQ ACK，或者HARQ NACK。
在2019年1月3GPP RAN1的AH#1901会议中(参见非专利文献8)，关于NR V2X组播(groupcast)的HARQ反馈机制的设计包含如下结论： 对于groupcast通信，当使能HARQ反馈时，支持两种HARQ反馈机制，分别为：
1)接收UE只反馈HARQ NACK；当接收UE正确译码PSCCH且未能正确译码相应的PSSCH时，接收UE反馈NACK；其他情况接收UE不进行HARQ反馈；
a)组内的所有接收UE共享(share)一个PSFCH资源用于反馈HARQ NACK。
2)接收UE反馈HARQ ACK和HARQ NACK；当接收UE正确译码PSCCH且未能正确译码相应的PSSCH时，接收UE反馈NACK；当接收UE正确译码PSCCH且正确译码相应的PSSCH时，接收UE反馈ACK。
a)组内的每个UE使用单独的PSFCH资源用于反馈HARQ ACK和HARQ NACK。
在2019年4月3GPP RAN1#96bis的会议(参见非专利文献9)结论中，关于PSFCH的资源配置有如下结论：
在一个资源池中，PSFCH在资源池的时隙(slots)中的配置是周期性的，其周期可以表示为N，N的可取值为1，或者，2，或者，4。
本专利的方案中包括侧行通信UE确定用于反馈侧行通信HARQ反馈的PSFCH资源的方法。
现有技术文献
非专利文献
非专利文献1：RP-140518，Work item proposal on LTE Device to Device Proximity Services
非专利文献2：RP-142311，Work Item Proposal for Enhanced LTE Device to Device Proximity Services
非专利文献3：RP-152293，New WI proposal：Support for V2V services based on LTE sidelink
非专利文献4：RP-170798，New WID on 3GPP V2X Phase 2
非专利文献5：RP-181480，New SID Proposal：Study on NR V2X
非专利文献6：RAN1#94bis，Chairman notes，section 7.2.4.2
非专利文献7：RAN1#95，Chairman notes，section 7.2.4.2
非专利文献8：RAN1AH#1901，Chairman notes，section 7.2.4.1.4，section 7.2.4.3
非专利文献9：RAN1#96bis，Chairman notes，section 7.2.4.5
发明内容
为了解决上述问题中的至少一部分，本公开提供了一种由用户设备执行的方法以及用户设备，能够有效地适用于基于5G NR网络技术的V2X的应用场景。
根据本公开的一个方面，提供一种由用户设备执行的方法，包括：接收侧行通信的配置信息即第一配置信息；接收其他用户设备发送的侧行通信控制信息SCI和对应的物理侧行通信共享信道PSSCH；确定所述物理侧行通信共享信道PSSCH对应的物理侧行通信反馈信道PSFCH的传输时隙S；确定和所述时隙S相关联的N个侧行通信时隙，其中N是正整数。
根据本公开的一个方面的由用户设备执行的方法，所述第一配置信息是基站通过无线资源控制RRC信令发送的配置信息；或所述第一配置信息包含在所述用户设备的预配置信息中，所述第一配置信息中包含资源池的配置信息即第二配置信息。
根据本公开的一个方面的由用户设备执行的方法，所述第二配置信息包含：PSFCH的周期即所述N；和/或反馈间隔K，其中K是正整数。
根据本公开的一个方面的由用户设备执行的方法，所述用户设备确定所述物理侧行通信共享信道PSSCH对应的物理侧行通信反馈信道PSFCH的传输时隙S，使得所述PSFCH和所述PSSCH之间的间隔为大于或者等于所述反馈间隔K的最小整数，并且使得所述时隙S中含有PSFCH资源。
根据本公开的一个方面的由用户设备执行的方法，所述用户设备根据所述周期N确定和所述时隙S相关联的N个侧行通信时隙。
根据本公开的一个方面的由用户设备执行的方法，还不包括：所述用户设备确定所述PSSCH所在的时隙为所述N个侧行通信时隙的第i+1个， 其中，i＝0，1，...，N-1，用于确定所述PSFCH的资源。
另外，根据本公开的另一个方面，还提供一种用户设备，包括：处理器；以及存储器，存储有指令，其中，所述指令在由所述处理器运行时执行上述的方法。
发明效果
根据本公开，能够提供了一种有效地适用于基于5G NR网络技术的V2X的应用场景的由用户设备执行的方法以及用户设备。
附图说明
通过下文结合附图的详细描述，本公开的上述和其它特征将会变得更加明显，其中：
图1是示意性表示Rel-14/15 LTE V2X侧行通信的基本过程图。
图2是示意性表示Rel-14/15 LTE V2X的两种资源分配方式。
图3是示意性表示本公开实施例一至十二的由用户设备执行的方法的基本流程图。
图4是示意性表示本公开实施例十三和实施例十四的由用户设备执行的方法的基本流程图。
图5是示意性表示本公开所涉及的用户设备的框图。
具体实施方式
下面结合附图和具体实施方式对本公开进行详细阐述。应当注意，本公开不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本公开没有直接关联的公知技术的详细描述，以防止对本公开的理解造成混淆。
下文以5G移动通信系统及其后续的演进版本作为示例应用环境，具体描述了根据本公开的多个实施方式。然而，需要指出的是，本公开不限于以下实施方式，而是可适用于更多其它的无线通信系统，例如5G之后的通信系统以及5G之前的4G移动通信系统等。
下面描述本公开涉及的部分术语，如未特别说明，本公开涉及的术语 采用此处定义。本公开给出的术语在LTE、LTE-Advanced、LTE-Advanced Pro、NR以及之后的通信系统中可能采用不同的命名方式，但本公开中采用统一的术语，在应用到具体的系统中时，可以替换为相应系统中采用的术语。
3GPP：3rd Generation Partnership Project，第三代合作伙伴计划
LTE：Long Term Evolution，长期演进技术
NR：New Radio，新无线、新空口
PDCCH：Physical Downlink Control Channel，物理下行控制信道
DCI：Downlink Control Information，下行控制信息
PDSCH：Physical Downlink Shared Channel，物理下行共享信道
UE：User Equipment，用户设备
eNB：evolved NodeB，演进型基站
gNB：NR基站
TTI：Transmission Time Interval，传输时间间隔
OFDM：Orthogonal Frequency Division Multiplexing，正交频分复用
C-RNTI：Cell Radio Network Temporary Identifier，小区无线网络临时标识
CSI：Channel State Indicator，信道状态指示
HARQ：Hybrid Automatic Repeat Request，混合自动重传请求
CSI-RS：CSI-Reference Signal，信道状态测量参考信号
CRS：Cell Reference Signal，小区特定参考信号
PUCCH：Physical Uplink Control Channel，物理上行控制信道
PUSCH：Physical Uplink Shared Channel，物理上行共享信道
UL-SCH：Uplink Shared Channel，上行共享信道
CG：Configured Grant，配置调度许可
Sidelink：侧行通信
SCI：Sidelink Control Information，侧行通信控制信息
PSCCH：Physical Sidelink Control Channel，物理侧行通信控制信道
MCS：Modulation and Coding Scheme，调制编码方案
CRB：Common Resource Block，公共资源块
CP：Cyclic Prefix，循环前缀
PRB：Physical Resource Block，物理资源块
PSSCH：Physical Sidelink Shared Channel，物理侧行通信共享信道
FDM：Frequency Division Multiplexing，频分复用
RRC：Radio Resource Control，无线资源控制
RSRP：Reference Signal Receiving Power，参考信号接收功率
SRS：Sounding Reference Signal，探测参考信号
DMRS：Demodulation Reference Signal，解调参考信号
CRC：Cyclic Redundancy Check，循环冗余校验
PSDCH：Physical Sidelink Discovery Channel，物理侧行通信发现信道
PSBCH：Physical Sidelink Broadcast Channel，物理侧行通信广播信道
SFI：Slot Format Indication，时隙格式指示
TDD：Time Division Duplexing，时分双工
FDD：Frequency Division Duplexing，频分双工
SIB1：System Information Block Type 1，系统信息块类型1
SLSS：Sidelink synchronization Signal，侧行通信同步信号
PSSS：Primary Sidelink Synchronization Signal，侧行通信主同步信号
SSSS：Secondary Sidelink Synchronization Signal，侧行通信辅同步信号
PCI：Physical Cell ID，物理小区标识
PSS：Primary Synchronization Signal，主同步信号
SSS：Secondary Synchronization Signal，辅同步信号
BWP：BandWidth Part，带宽片段/部分
GNSS：Global Navigation Satellite System，全球导航卫星定位系统
SFN：System Frame Number，系统(无线)帧号
DFN：Direct Frame Number，直接帧号
IE：Information Element，信息元素
SSB：Synchronization Signal Block，同步系统信息块
EN-DC：EUTRA-NR Dual Connection，LTE-NR双连接
MCG：Master Cell Group，主小区组
SCG：Secondary Cell Group，辅小区组
PCell：Primary Cell，主小区
SCell：Secondary Cell，辅小区
PSFCH：Physical Sidelink Feedback Channel，物理侧行通信反馈信道
下文是与本公开方案相关联现有技术的描述。如无特别说明，具体实施例中与现有技术中相同术语的含义相同。
值得指出的是，本公开说明书中涉及的V2X与sidelink含义相同。文中的V2X也可以表示sidelink；相似地，文中的sidelink也可以表示V2X，后文中不做具体区分和限定。
本公开的说明书中的V2X(sidelink)通信的资源分配方式与V2X(sidelink)通信的传输模式可以等同替换。
本公开的说明书涉及基于序列设计的PSFCH。值得指出的是，PSFCH信道的设计方式包括基于序列的设计方式，但不限于基于序列的设计方式。
本公开的说明书中相同的符号表示的含义始终相同，如PSFCH资源配置的周期N，PSFCH频域上占据的PRB数目
Figure PCTCN2020096790-appb-000001
如UE确定的i的含义，等等。
Sidelink通信的场景
1)无网络覆盖(Out-of-Coverage)侧行通信：进行sidelink通信的两个UE都没有网络覆盖(例如，UE在需要进行sidelink通信的频率上检测不到任何满足“小区选择准则”的小区，表示该UE无网络覆盖)。
2)有网络覆盖(In-Coverage)侧行通信：进行sidelink通信的两个UE都有网络覆盖(例如，UE在需要进行sidelink通信的频率上至少检测到一个满足“小区选择准则”的小区，表示该UE有网络覆盖)。
3)部分网络覆盖(Partial-Coverage)侧行通信：进行sidelink通信的其中一个UE无网络覆盖，另一个UE有网络覆盖。
从UE侧来讲，该UE仅有无网络覆盖和有网络覆盖两种场景。部分 网络覆盖是从sidelink通信的角度来描述的。
NR V2X单播(unicast)，组播(groupcast)和广播(broadcast)
现有LTE V2X通信中仅支持物理层的广播通信。广播通信广泛应用于蜂窝通信中基站向小区内UE发送系统消息等场景。NR V2X的设计目标中包括支持物理层的单播通信以及组播通信。单播通信表示一个发送用户设备(UE)和单个接收用户设备之间的通信。组播通信一般表示一组UE分配了相同的标识(Indentity，ID)，UE向组内的其他UE发送V2X数据，以及，接收组内的其他UE发送的V2X数据。
HARQ和侧行通信sidelink HARQ
为了更好地提高传输的可靠性以及提升频谱效率，在单播通信和组播通信中通常包含HARQ重传机制。HARQ表示混合自动重传，可以提供纠错功能并且实现快速重传，在无线数据通信中广泛应用。HARQ反馈包括HARQ ACK(反馈信息表示正确接收并译码)和HARQ NACK(反馈信息表示未正确接收译码)。其中，HARQ ACK表示接收UE正确接收并且译码发送UE的数据，因此反馈HARQ ACK；HARQ NACK表示接收UE未正确接收并译码发送UE的数据。当接收UE反馈HARQ NACK时，发送UE可能会重传相应的数据，以保证提升数据通信的可靠性。
在NR V2X中，支持物理层的HARQ反馈(HARQ feedback，或者称作HARQ-ACK)和HARQ合并机制(HARQ combining)。其中，HARQ ACK和HARQ NACK由物理侧行通信反馈信道(PSFCH)承载。
侧行通信组播(groupcast)HARQ
对于groupcast侧行通信，当使能(enable)HARQ反馈时，支持两种HARQ反馈机制，分别为：
1)接收UE只反馈HARQ NACK；当接收UE正确译码PSCCH且未能正确译码相应的PSSCH时，接收UE反馈NACK；其他情况接收UE不进行HARQ反馈；
a)组内的所有接收UE共享(share)一个PSFCH资源用于反馈HARQ  NACK。
2)接收UE反馈HARQ ACK和HARQ NACK；当接收UE正确译码PSCCH且未能正确译码相应的PSSCH时，接收UE反馈NACK；当接收UE正确译码PSCCH且正确译码相应的PSSCH时，接收UE反馈ACK。
a)组内的每个UE使用单独的PSFCH资源用于反馈HARQ ACK和HARQ NACK。
一个PSFCH资源表示映射在一个特定的时域(time domain)、频域(frequency domain)、码域(code domain)的PSFCH资源。
PSFCH资源配置
在一个资源池(resource pool)中，PSFCH在资源池的时隙(slots)中的配置是周期性的，其周期可以表示为N，N的可取值为1，或者，2，或者，4。例如，N＝1表示在资源池配置的所有slots中均含有PSFCH资源；N＝2表示在资源池配置的所有slots中，每连续2个slots中存在一个slot，该slot内含有PSFCH资源。N＝4表示在资源池配置的所有slots中，每连续4个slots中存在一个slot，该slot内含有PSFCH资源。
UE确定PSFCH时域资源的方法
根据PSFCH资源的配置，UE获取PSFCH在资源池的时隙slots上的配置周期N。如果使能(enable)了HARQ反馈，UE可以确定在资源池的某N个连续slots上(这N个连续slots的编号采用i表示，i的范围为0，1，...，N-1)接收到的PSSCH对应的携带HARQ反馈信息的PSFCH都在同一个配置有PSFCH资源的slot s上。本公开的说明书中采用slot s对应的N个连续的slot表示这N个连续的slots，UE可根据接收到PSSCH所在的slot是slot s对应的N个连续的slot中的第i+1个来确定i的取值。此处K表示接收到PSSCH到对应的PSFCH的时域间隔，其中，可选地，K的单位是时隙slot。举例来说，N＝4，K＝3，slot s对应的N＝4个连续的slots表示：资源池的某个含有PSFCH的slot记为slot PSFCH，其中，资源池上的所有slot编号为slot 0，slot 1，...，那么，这N＝4个连续的slots为 slot PSFCH-6至slot PSFCH-3，即表示UE在slot PSFCH-6至slot PSFCH-3接收到的PSSCH对应的PSFCH都在slot PSFCH上。例如UE在slot PSFCH-4上接收到PSSCH，那么表示slot PSFCH对应的4个slots中的第2+1个，因此i＝2。
基于序列(sequence-based)的PSFCH
此处利用
Figure PCTCN2020096790-appb-000002
表示PSFCH在频域上占据的PRB数目，构成PSFCH的序列长度即可以表示为
Figure PCTCN2020096790-appb-000003
其中
Figure PCTCN2020096790-appb-000004
该序列可以表示为r α(n)＝e jαn×r(n)，其中
Figure PCTCN2020096790-appb-000005
其中，α表示序列的循环移位(cyclic shift)。不同的循环移位可生成不同的序列(序列长度相同)，即不同的循环移位表示不同的PSFCH资源。具体来讲，当两个PSFCH的时域和频域资源都相同的情况下，如果PSFCH的循环移位α不同(码域资源不同)，这两个PSFCH表示不同的两个PSFCH资源。在某个给定的(或者确定的)时频资源上，当给定(或者确定)初始序列r(n)时，α的可取数值的数目为
Figure PCTCN2020096790-appb-000006
即r α(n)可能产生至多
Figure PCTCN2020096790-appb-000007
个序列，即表示在该给定(或者确定)的时频资源上，至多存在
Figure PCTCN2020096790-appb-000008
个不同的PSFCH资源。
例如，
Figure PCTCN2020096790-appb-000009
序列的长度为
Figure PCTCN2020096790-appb-000010
因此在给定某个时频资源时，α的可取数值的数目为
Figure PCTCN2020096790-appb-000011
即存在12个不同的PSFCH资源。如果UE需要反馈1比特的HARQ反馈信息，那么用户设备UE需要占用2个不同的PSFCH资源用于分别发送HARQ ACK和HARQ NACK。在该给定的时频资源上至多可以复用12/2＝6个不同的用户设备进行HARQ反馈(每个UE均反馈1比特的HARQ信息)，或者，类似地，如果UE需要反馈2比特的HARQ反馈信息，那么用户设备UE需要占用2 2＝4个不同的PSFCH资源用于分别发送每个比特HARQ反馈信息的HARQ ACK和HARQ NACK。在该给定的时频资源上至多可以复用12/4＝3个不同的用户设备进行HARQ反馈。
值得指出的是，在本公开说明书的实施例一至实施例十二中涉及的PSFCH资源的编号，可选地，编号方式按照循环移位优先准则，例如，在某个时频资源上(一个OFDM符号，
Figure PCTCN2020096790-appb-000012
个连续的PRB上)的一个PSFCH occasion，PSFCH资源的编号为
Figure PCTCN2020096790-appb-000013
其中每个PSFCH资源对应一个循环移位，且资源编号相邻的PSFCH资源的循环移位的差值是1；在相同的OFDM符号上，频域上(PRB编号增加)的下一个(next)PSFCH occasion对应PSFCH资源的编号为
Figure PCTCN2020096790-appb-000014
以此类推。可选地，如果某个时隙s中的至少一个OFDM符号包含PSFCH occasion，那么，可选地，PSFCH资源的编号在上述方式的基础上，按照OFDM符号编号从小到大的原则进行编号，例如先对OFDM符号12上的PSFCH资源进行编号，然后对OFDM符号13上的PSFCH资源进行编号，即OFDM符号13上的PSFCH资源的编号是OFDM符号12上的PSFCH资源编号的顺序递增(increasing order)。
说明书实施例中的术语(terminology)
如无特殊描述，说明书的所有实施例中术语的定义以及确定方式和下述术语的定义以及确定方式相同。
■组播groupcast中UE的组内标识(identifier)：在本公开的实施例中，组播中UE的组内标识identifier使用m表示。可选地，组播中的用户设备(发送UE，或者，接收UE，或者，发送UE和接收UE)确定m的一种可选方法是将组内所有的(或者，部分的)UE的层2 ID(Layer-2 ID，可选地，24比特)进行升序或者降序排列，组内的标识m表示上述排列中的第(m+1)个(或者，第m个)对应的UE；或者，另一种可选方法是将组内所有的(或者，部分的)UE的层1 ID(Layer-1 ID，可选地，8比特，或者16比特，或者24比特)进行升序或者降序排列，组内的标识m表示上述排列中的第(m+1)个(或者，第m个)对应的UE。本公开中UE的组内标识identifier的确定方法包括但不限于上述方法。
■对应某一个slot上PSFCH的N个连续slots：根据PSFCH资源的配置，UE获取PSFCH在资源池的时隙slots上的配置周期N。如果使能(enable)了HARQ反馈，UE可以确定在资源池的某N个连续slots上(这N个连续slots的编号采用i表示，i的范围为0，1，...，N-1)接收到的PSSCH对应的携带HARQ反馈信息的PSFCH都在同一个配 置有PSFCH资源的slot s上。本公开的说明书中采用slot s对应的N个连续的slot表示这N个连续的slots，UE可根据接收到PSSCH所在的slot是slot s对应的N个连续的slot中的第i+1个来确定i的取值。
■PSFCH occasion(时机)：PSFCH occasion表示在一个特定的时域(可选地，1个OFDM符号)、频域资源(可选地，
Figure PCTCN2020096790-appb-000015
个PRB)上的所有PSFCH。其中，PSFCH在频域上占用
Figure PCTCN2020096790-appb-000016
个连续的PRB，时域上占用1个OFDM符号。
LTE V2X(sidelink)通信的基本过程
图1是示出了LTE V2X UE侧行通信的示意图。首先，UE1向UE2发送侧行通信控制信息(SCI format 1)，由物理层信道PSCCH携带。SCI format 1包含PSSCH的调度信息，例如PSSCH的频域资源等。其次，UE1向UE2发送侧行通信数据，由物理层信道PSSCH携带。PSCCH和相应的PSSCH采用频分复用的方式，即PSCCH和相应的PSSCH在时域上位于相同的子帧上，在频域上位于不同的PRB上。PSCCH和PSSCH的具体设计方式如下：
1)PSCCH在时域上占据一个子帧，频域上占据两个连续的PRB。加扰序列的初始化采用预定义数值510。PSCCH中可携带SCI format 1，其中SCI format 1至少包含PSSCH的频域资源信息。例如，对于频域资源指示域，SCI format 1指示该PSCCH对应的PSSCH的起始sub-channel编号和连续sub-channel的数目。
2)PSSCH在时域上占据一个子帧，和对应的PSCCH采用频分复用(FDM)。PSSCH在频域上占据一个或者多个连续的sub-channel，sub-channel在频域上表示n subCHsize个连续的PRB，n subCHsize由RRC参数配置，起始sub-channel和连续sub-channel的数目由SCI format 1的频域资源指示域指示。
LTE V2X的资源分配方式Transmission Mode 3/4
图2是示出了LTE V2X的两种资源分配方式，分别称为基于基站调度的资源分配(Transmission Mode 3)和基于UE感知(sensing)的资源 分配(Transmission Mode 4)。LTE V2X中，当存在eNB网络覆盖的情况下，基站可通过UE级的专有RRC信令(dedicated RRC signaling)SL-V2X-ConfigDedicated配置该UE的资源分配方式，或称为该UE的传输模式，具体为：
1)基于基站调度的资源分配方式(Transmission Mode 3)：基于基站调度的资源分配方式表示sidelink侧行通信所使用的频域资源来自于基站的调度。传输模式3包含两种调度方式，分别为动态调度和半静态调度(SPS)。对于动态调度，UL grant(DCI format 5A)中包括PSSCH的频域资源，承载DCI format 5A的PDCCH或者EPDCCH的CRC由SL-V-RNTI加扰。对于SPS半静态调度，基站通过IE：SPS-ConfigSL-r14配置一个或者多个(至多8个)配置的调度许可(configured grant)，每个配置的调度许可含有一个调度许可编号(index)和调度许可的资源周期。UL grant(DCI format 5A)中包括PSSCH的频域资源，以及，调度许可编号的指示信息(3bits)和SPS激活(activate)或者释放(release，或者，去激活)的指示信息。承载DCI format 5A的PDCCH或者EPDCCH的CRC由SL-SPS-V-RNTI加扰。
具体地，当RRC信令SL-V2X-ConfigDedicated置为scheduled-r14时，表示该UE被配置为基于基站调度的传输模式。基站通过RRC信令配置SL-V-RNTI或者SL-SPS-V-RNTI，并通过PDCCH或者EPDCCH(DCI format 5A，CRC采用SL-V-RNTI加扰或者采用SL-SPS-V-RNTI加扰)向UE发送上行调度许可UL grant。上述上行调度许可UL grant中至少包含sidelink通信中PSSCH频域资源的调度信息。当UE成功监听到由SL-V-RNTI加扰或者SL-SPS-V-RNTI加扰的PDCCH或者EPDCCH后，将上行调度许可UL grant(DCI format 5A)中的PSSCH频域资源指示域作为PSCCH(SCI format 1)中PSSCH的频域资源的指示信息，并发送PSCCH(SCI format 1)和相应的PSSCH。
对于传输模式3中的半静态调度SPS，UE在下行子帧n上接收SL-SPS-V-RNTI加扰的DCI format 5A。如果DCI format 5A中包 含SPS激活的指示信息，该UE根据DCI format 5A中的指示信息确定PSSCH的频域资源，根据子帧n等信息确定PSSCH的时域资源(PSSCH的发送子帧)。
2)基于UE感知(sensing)的资源分配方式(Transmission Mode 4)：基于UE sensing的资源分配方式表示用于sidelink通信的资源基于UE对候选可用资源集合的感知(sensing)过程。RRC信令SL-V2X-ConfigDedicated置为ue-Selected-r14时表示该UE被配置为基于UE sensing的传输模式。在基于UE sensing的传输模式中，基站配置可用的传输资源池，UE根据一定的规则(详细过程的描述参见LTE V2X UE sensing过程部分)在传输资源池(resource pool)中确定PSSCH的sidelink发送资源，并发送PSCCH(SCI format 1)和相应的PSSCH。
NR参数集合(numerology)
NR支持5种子载波间隔，分别为15k，30k，60k，120k，240kHz(对应μ＝0，1，2，3，4)如表4.2-1所示。
表4.2-1：支持传输参数集合(Supported transmission numerologies).
μ Δf＝2 μ·15[kHz] 循环前缀(CP)
0 15 Normal
1 30 Normal
2 60 Normal Extended
3 120 Normal
4 240 Normal
仅当μ＝2时，即60kHz子载波间隔的情况下支持扩展(Extended)CP，其他子载波间隔的情况仅支持正常CP。对于正常(Normal)CP，每个时隙(slot)含有14个OFDM符号，即
Figure PCTCN2020096790-appb-000017
对于扩展CP，每个时隙含有12个OFDM符号，即
Figure PCTCN2020096790-appb-000018
对于μ＝0，即15kHz子载波间隔，1slot＝1ms；μ＝1，即30kHz子载波间隔，1slot＝0.5ms；μ＝2， 即60kHz子载波间隔，1slot＝0.25ms，以此类推。本公开的说明书实施例中沿用此处
Figure PCTCN2020096790-appb-000019
的定义。
图3是示出了本公开的各个实施例一至十二的由用户设备执行的方法的基本流程图。
下面，结合图3所示的基本流程图来详细说明本公开的实施例一至十二的由用户设备执行的方法。
[实施例一]
如图3所示，在本公开的实施例一中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括反馈间隔K(PSSCH到对应PSFCH的间隔)，可选地，K的单位为时隙slot。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述其他用户设备发送的SCI含有所述SCI和对应的所述PSSCH为单播(unicast)传输的指示信息。所述指示信息的实施方式包括但不限于以下：
可选地，所述SCI中包含2比特的指示域指示信息，或者，1比特的指示域指示信息，指示所述SCI和对应的所述PSSCH为单播(unicast)传输。
可选地，所述SCI中包含的所述其他用户设备的ID，和/或，所述用户设备的ID，和/或，所述传输的session(或者link)ID，指示所述SCI和对应的所述PSSCH为单播(unicast)传输。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s 上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+12n/2。或者，可选地，用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel× (4或者，12n)，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+2×12n/4，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+3×12n/4。所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
[实施例二]
如图3所示，在本公开的实施例二中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所 述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述其他用户设备发送的SCI含有所述SCI和对应的所述PSSCH为单播(unicast)传输的指示信息。所述指示信息的实施方式包括但不限于以下：
可选地，所述SCI中包含2比特的指示域指示信息，或者，1比特的指示域指示信息，指示所述SCI和对应的所述PSSCH为单播(unicast)传输。
可选地，所述SCI中包含的所述其他用户设备的ID，和/或，所述用户设备的ID，和/或，所述传输的session(或者link)ID，指示所述SCI和对应的所述PSSCH为单播(unicast)传输。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为 Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+12n/2。或者，可选地，用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为 Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号
Figure PCTCN2020096790-appb-000020
Figure PCTCN2020096790-appb-000021
可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号
Figure PCTCN2020096790-appb-000022
Figure PCTCN2020096790-appb-000023
所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
[实施例三]
如图3所示，在本公开的实施例三中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括所述资源池中的侧行通信为单播unicast的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的 第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+12n/2。或者，可选地，用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×N subchannel×(2或者，12n)+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可 选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+2×12n/4，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×N subchannel×(4或者，12n)+3×12n/4。所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
[实施例四]
如图3所示，在本公开的实施例四中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息 SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括所述资源池中的侧行通信为单播unicast的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH 对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+12n/2。或者，可选地，用户设备确定反馈 HARQ NACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×(2或者，12n)+i×PSFCHoccasion×12n/N+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号
Figure PCTCN2020096790-appb-000024
Figure PCTCN2020096790-appb-000025
可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×(4或者，12n)+i×PSFCHoccasion×12n/N+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号
Figure PCTCN2020096790-appb-000026
Figure PCTCN2020096790-appb-000027
所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
[实施例五]
如图3所示，在本公开的实施例五中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括接收UE只反馈HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述其他用户设备发送的SCI含有所述SCI和对应的所述PSSCH为组播(groupcast)传输的指示信息。所述指示信息的实施方式包括但不限于以下：
可选地，所述SCI中包含2比特的指示域指示信息，或者，1比特的指示域指示信息，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述SCI中包含的所述其他用户设备的ID，和/或，所述用户设备的ID，和/或，所述传输的session(或者link)ID，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、 和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel+i×N subchannel。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel+i×N subchannel，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel+i×N subchannel。
或者，
可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×12n+i×N subchannel×12n。
[实施例六]
如图3所示，在本公开的实施例六中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括接收UE只反馈HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述其他用户设备发送的SCI含有所述SCI和对应的所述PSSCH为组播(groupcast)传输的指示信息。所述指示信息的实施方式包括但不限于以下：
可选地，所述SCI中包含2比特的指示域指示信息，或者，1比特的指示域指示信息，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述SCI中包含的所述其他用户设备的ID，和/或，所述用户设备的ID，和/或，所述传输的session(或者link)ID，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道 的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH 资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel+i×PSFCHoccasion×12n/N，
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel+i×PSFCHoccasion×12n/N，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel+i×PSFCHoccasion×12n/N。
或者，
可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×12n+i×PSFCHoccasion×12n/N。
[实施例七]
如图3所示，在本公开的实施例七中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置 (Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括所述资源池中的侧行通信为组播groupcast的配置信息。
可选地，所述资源池配置信息中包括接收UE只反馈HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不 小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel+i×N subchannel。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel+i×N subchannel，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel+i×N subchannel。
或者，
可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×12n+i×N subchannel×12n。
[实施例八]
如图3所示，在本公开的实施例八中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括所述资源池中的侧行通信为组播groupcast的配置信息。
可选地，所述资源池配置信息中包括接收UE只反馈HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1， 或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备根据所述i，和/或，所述Index startSubchannel确定 PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel+i×PSFCHoccasion×12n/N，
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel+i×PSFCHoccasion×12n/N，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel+i×PSFCHoccasion×12n/N。
或者，
可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×12n+i×PSFCHoccasion×12n/N。
[实施例九]
如图3所示，在本公开的实施例九中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括接收UE反馈HARQ ACK和HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述其他用户设备发送的SCI含有所述SCI和对应的所述PSSCH为组播(groupcast)传输的指示信息。所述指示信息的实施方式包括但不限于以下：
可选地，所述SCI中包含2比特的指示域指示信息，或者，1比特的指示域指示信息，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述SCI中包含的所述其他用户设备的ID，和/或，所述用户设备的ID，和/或，所述传输的session(或者link)ID，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息 (可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上(OFDM符号数目表示为N sym)含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备确定组内标识identifier，使用m表示。可选地，所述用户设备根据所述i，和/或，所述m，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000028
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000029
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000030
或者，可选地，所述用 户设备确定变量
Figure PCTCN2020096790-appb-000031
或者，
可选地，所述变量Capacity UE包含在所述侧行通信配置信息中，或者，在所述用户设备的预配置信息中，或者，预定义的数值。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+12n/2。或者，可选地，用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为 Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+2×12n/4，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+3×12n/4。所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
可选地，如果所述用户设备的组内标识m＞Capacity UE，则，可选地，所述用户设备不反馈HARQ信息，或者，所述用户设备假设HARQ反馈是去使能的(disable)。
[实施例十]
如图3所示，在本公开的实施例十中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K， 可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括接收UE反馈HARQ ACK和HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述其他用户设备发送的SCI含有所述SCI和对应的所述PSSCH为组播(groupcast)传输的指示信息。所述指示信息的实施方式包括但不限于以下：
可选地，所述SCI中包含2比特的指示域指示信息，或者，1比特的指示域指示信息，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述SCI中包含的所述其他用户设备的ID，和/或，所述用户设备的ID，和/或，所述传输的session(或者link)ID，指示所述SCI和对应的所述PSSCH为组播(groupcast)传输。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上(OFDM符号数目表示为N sym)含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备确定组内标识identifier，使用m表示。
可选地，所述用户设备根据所述i，和/或，所述m，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000032
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000033
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000034
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000035
或者，
可选地，所述变量Capacity UE包含在所述侧行通信配置信息中，或者， 在所述用户设备的预配置信息中，或者，预定义的数值。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+12n/2。或者，可选地，用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+2×12n/4，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+3×12n/4。所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
可选地，如果所述用户设备的组内标识m＞Capacity UE，则，可选地， 所述用户设备不反馈HARQ信息，或者，所述用户设备假设HARQ反馈是去使能的(disable)。
[实施例十一]
如图3所示，在本公开的实施例十一中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括所述资源池中的侧行通信为组播groupcast的配置信息。
可选地，所述资源池配置信息中包括接收UE反馈HARQ ACK和HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上(OFDM符号数目表示为N sym)含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备确定组内标识identifier，使用m表示。
可选地，所述用户设备根据所述i，和/或，所述m，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000036
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000037
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000038
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000039
或者，
可选地，所述变量Capacity UE包含在所述侧行通信配置信息中，或者，在所述用户设备的预配置信息中，或者，预定义的数值。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+12n/2。或者，可选地，用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可 选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+2×12n/4，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×N subchannel×Capacity UE+3×12n/4。所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
可选地，如果所述用户设备的组内标识m＞Capacity UE，则，可选地，所述用户设备不反馈HARQ信息，或者，所述用户设备假设HARQ反馈是去使能的(disable)。
[实施例十二]
如图3所示，在本公开的实施例十二中，用户设备执行的方法可以包括：
在步骤S101，侧行通信用户设备确定侧行通信sidelink的配置信息。
可选地，所述侧行通信配置信息是基站通过RRC信令发送的配置信息。或者，
可选地，所述侧行通信配置信息包含在所述用户设备的预配置 (Pre-configuration)信息中。
可选地，所述侧行通信配置信息中包含资源池resource pool的配置信息。
可选地，所述资源池配置信息中包括子信道大小的信息SubchannelSize。可选地，所述子信道大小的信息以PRB为单位。
可选地，所述资源池配置信息中包括子信道数目的信息N subchannel。
可选地，所述资源池配置信息中包括PSFCH的周期N。可选地，所述PSFCH的周期以资源池中的slot为单位。
可选地，所述资源池配置信息中包括PSSCH到对应PSFCH的间隔K，可选地，K的单位为时隙slot。
可选地，所述资源池配置信息中包括所述资源池中的侧行通信为组播groupcast的配置信息。
可选地，所述资源池配置信息中包括接收UE反馈HARQ ACK和HARQ NACK的配置信息。
在步骤S102，用户设备接收其他用户设备发送的侧行通信控制信息SCI和对应的(corresponding)PSSCH。
可选地，所述用户设备根据所述SCI确定所述PSSCH的起始子信道的编号Index startSubchannel。
在步骤S103，用户设备确定所述PSSCH对应的PSFCH的资源。
可选地，所述用户设备HARQ反馈的比特数目为x比特，可选地，x＝1，或者，2，或者大于2的正整数。
可选地，PSFCH在频域上占据n个连续的PRB，可选地，n＝1，或者，2，或者大于2的正整数。
所述PSSCH的最后一个OFDM符号所在的时隙记为slot PSSCH。
可选地，所述用户设备根据所述slot PSSCH、和/或所述K、和/或所述N、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述PSSCH对应的PSFCH所在的时隙slot s。可选地，一种具体的实施方式是，所述PSSCH对应的PSFCH所在的时隙slot s与所述PSSCH所在的时隙之间的间隔(采用slot作为单位)不小于所述K，且满足所述时隙slot s是不 小于所述K中的最小正整数，并且所述时隙slot s上含有配置的周期为所述N的PSFCH资源。
可选地，所述用户设备根据所述slot s、和/或所述N、和/或所述K、和/或所述资源池配置信息中的除所述N和所述K之外的至少一个信息(可选地，资源池侧行通信时域资源的配置信息)，确定所述slot s对应的N个连续的时隙。可选地，所述N个连续的时隙上接收到的PSSCH对应的PSFCH时域上在所述slot s上。
可选地，所述用户设备确定所述slot PSSCH为所述N个连续的时隙中的第i+1个，其中，i＝0，1，...，N-1。
可选地，所述用户设备根据所述资源池配置信息确定所述时隙slot s上的PSFCH occasion(时机)的数目，表示为PSFCHoccasion。
可选地，在所述时隙slot s中，时域上仅有一个OFDM符号含有所述PSFCH occasion，或者，可选地，时域上多于一个OFDM符号上(OFDM符号数目表示为N sym)含有所述PSFCH occasion。
可选地，所述用户设备确定所述时隙slot s上的PSFCH资源的编号，表示为编号0至编号PSFCHoccasion*12n-1。可选地，如果PSFCH资源编号k+1和PSFCH资源编号k属于相同的PSFCH occasion，那么PSFCH资源编号k+1对应的循环移位等于PSFCH资源编号k对应的循环移位加1。其中，k为非负的整数。
可选地，所述用户设备确定组内标识identifier，使用m表示。
可选地，所述用户设备根据所述i，和/或，所述m，和/或，所述Index startSubchannel确定PSFCH的资源，或者，确定PSFCH的资源编号。
可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000040
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000041
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000042
或者，可选地，所述用户设备确定变量
Figure PCTCN2020096790-appb-000043
或者，
可选地，所述变量Capacity UE包含在所述侧行通信配置信息中，或者，在所述用户设备的预配置信息中，或者，预定义的数值。
可选地，如果所述用户设备HARQ反馈的比特数目为1比特，则，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+12n/2。或者，可选地，用户设备确定反馈HARQ NACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈HARQ ACK的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+12n/2。
或者，
可选地，如果所述用户设备HARQ反馈的比特数目为2比特，则，可选地，所述用户设备确定反馈“00”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+1，或者，可选地，所述用户设备确定反馈“01”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+12n/4，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+2，或者，可选地，所述用户设备确定反馈“11”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+2×12n/4，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号为Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+3，或者，可选地，所述用户设备确定反馈“10”的PSFCH资源的编号Index startSubchannel×Capacity UE+m+i×PSFCHoccasion×12n/N+3×12n/4。所述“00”“01”“11”“10”对应PSFCH资源的编号包括但不限于上述实施方式。
可选地，如果所述用户设备的组内标识m＞Capacity UE，则，可选地，所述用户设备不反馈HARQ信息，或者，所述用户设备假设HARQ反馈是去使能的(disable)。
图4是示出了本公开的各个实施例十三和实施例十四的由用户设备执行的方法的基本流程图。
下面，结合图4所示的基本流程图来详细说明本公开的实施例十三和实施例十四的由用户设备执行的方法。
[实施例十三]
如图4所示，在本发明的实施例十三中，用户设备执行的方法包括：
在步骤S201，侧行通信用户设备确定侧行通信资源池resource pool的配置信息。
可选地，所述侧行通信资源池配置信息是基站通过RRC信令发送的配置信息，
或者，
可选地，所述侧行通信资源池配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信资源池配置信息包括PSFCH的配置信息。
可选地，所述PSFCH的配置信息指示PSFCH资源的起始OFDM符号s start，或者，PSFCH资源的OFDM符号数n ofdm。
在步骤S202，用户设备确定资源池中PSFCH的时域资源。
可选地，如果所述PSFCH的配置信息指示PSFCH资源的起始OFDM符号s start，则所述UE确定所述PSFCH的时域资源从OFDM符号s start到OFDM符号
Figure PCTCN2020096790-appb-000044
或者，所述UE确定所述PSFCH的时域资源从OFDM符号s start到OFDM符号
Figure PCTCN2020096790-appb-000045
或者，
可选地，如果所述PSFCH的配置信息指示PSFCH资源的OFDM符号数n ofdm，则所述UE确定所述PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000046
到OFDM符号
Figure PCTCN2020096790-appb-000047
或者，所述UE确定所述PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000048
到OFDM符号
Figure PCTCN2020096790-appb-000049
[实施例十四]
如图4所示，在本发明的实施例十四中，用户设备执行的方法包括：
在步骤S201，侧行通信用户设备确定侧行通信资源池resource pool的配置信息。
可选地，所述侧行通信资源池配置信息是基站通过RRC信令发送的配置信息，
或者，
可选地，所述侧行通信资源池配置信息包含在所述用户设备的预配置(Pre-configuration)信息中。
可选地，所述侧行通信资源池配置信息包括PSFCH的配置信息。
可选地，所述PSFCH的配置信息包括至少一种PSFCH格式(format)的配置信息。
可选地，所述至少一种PSFCH格式包括第一PSFCH格式，所述第一PSFCH格式在时域上占用1个OFDM符号。
可选地，所述至少一种PSFCH格式包括第二PSFCH格式，所述第二PSFCH格式在时域上占用p个OFDM符号，p为大于或者等于1的正整数。
可选地，所述第一PSFCH格式的配置信息指示所述第一PSFCH格式资源的起始OFDM符号s start1，或者，PSFCH资源的OFDM符号数n ofdm1。
可选地，所述第二PSFCH格式的配置信息指示所述第二PSFCH格式 资源的起始OFDM符号s start2，或者，PSFCH资源的OFDM符号数n ofdm2。
在步骤S202，用户设备确定资源池中PSFCH的时域资源。
可选地，如果所述PSFCH的配置信息指示第一PSFCH格式资源的起始OFDM符号s start1，第二PSFCH格式资源的起始OFDM符号s start2，则所述UE确定所述第一PSFCH格式的时域资源从OFDM符号s start1到OFDM符号s start2-1，所述UE确定所述第二PSFCH格式的时域资源从OFDM符号s start2到OFDM符号
Figure PCTCN2020096790-appb-000050
或者，所述UE确定所述第一PSFCH格式的时域资源从OFDM符号s start1到OFDM符号s start2-1，所述UE确定所述第二PSFCH格式的时域资源从OFDM符号s start2到OFDM符号
Figure PCTCN2020096790-appb-000051
或者，所述UE确定所述第二PSFCH格式的时域资源从OFDM符号s start2到OFDM符号s start1-1，所述UE确定所述第一PSFCH格式的时域资源从OFDM符号s start1到OFDM符号
Figure PCTCN2020096790-appb-000052
或者，所述UE确定所述第二PSFCH格式的时域资源从OFDM符号s start2到OFDM符号s start1-1，所述UE确定所述第一PSFCH格式的时域资源从OFDM符号s start1到OFDM符号
Figure PCTCN2020096790-appb-000053
或者，
可选地，如果所述PSFCH的配置信息指示第一PSFCH格式资源的OFDM符号数n ofdm1，第二PSFCH格式资源的OFDM符号数n ofdm2，则所述UE确定所述第一PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000054
n ofdm1-n ofdm2到OFDM符号
Figure PCTCN2020096790-appb-000055
所述UE确定所述第二PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000056
到OFDM符号
Figure PCTCN2020096790-appb-000057
或者，所述UE确定所述第一PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000058
到OFDM符号
Figure PCTCN2020096790-appb-000059
所述UE确定所述第二PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000060
n ofdm2-1到OFDM符号
Figure PCTCN2020096790-appb-000061
或者，所述UE确定所述第二PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000062
到OFDM符号
Figure PCTCN2020096790-appb-000063
所述UE确定所述第一PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000064
到OFDM符号
Figure PCTCN2020096790-appb-000065
或者，所述UE确定所述第二PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000066
Figure PCTCN2020096790-appb-000067
到OFDM符号
Figure PCTCN2020096790-appb-000068
所述UE确定所述第一PSFCH的时域资源从OFDM符号
Figure PCTCN2020096790-appb-000069
到OFDM符号
Figure PCTCN2020096790-appb-000070
图5是表示本公开所涉及的用户设备UE的框图。如图5所示，该用户设备UE80包括处理器801和存储器802。处理器801例如可以包括微处理器、微控制器、嵌入式处理器等。存储器802例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器802上存储有程序指令。该指令在由处理器801运行时，可以执行本公开详细描述的由用户设备执行的上述方法。
上文已经结合优选实施例对本公开的方法和涉及的设备进行了描述。本领域技术人员可以理解，上面示出的方法仅是示例性的，而且以上说明的各实施例在不发生矛盾的情况下能够相互组合。本公开的方法并不局限于上面示出的步骤和顺序。上面示出的网络节点和用户设备可以包括更多的模块，例如还可以包括可以开发的或者将来开发的可用于基站、MME、或UE的模块等等。上文中示出的各种标识仅是示例性的而不是限制性的，本公开并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的教导可以进行许多变化和修改。
应该理解，本公开的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的基站和用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数 字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本申请中，“基站”可以指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。“用户设备”可以指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本公开的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本公开的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本公开实施例所述的操作(方法)。本公开的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可渎介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本公开实施例所描述的技术方案。
此外，上述每个实施例中所使用的基站设备和终端设备的每个功能模块或各个特征可以由电路实现或执行，所述电路通常为一个或多个集成电路。设计用于执行本说明书中所描述的各个功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)或通用集成电路、现场可编程门阵列(FPGA)或其他可编程逻辑器件、分立的门或晶体管逻辑、或分立的硬件组件、或以上器件的任意组合。通用处理器可以是微处理器，或者所述处理器可以是现有的处理器、控制器、微控制器或状态机。上述通用处理器或每个电路可以由数字电路配置，或者可以由逻辑电路配置。此外，当由于半导体技术的进步，出现了能够替代目前的集成电路的先进技术时，本公开也可以使用利用该先进技术得到的集成电路。
尽管以上已经结合本公开的优选实施例示出了本公开，但是本领域的技术人员将会理解，在不脱离本公开的精神和范围的情况下，可以对本公 开进行各种修改、替换和改变。因此，本公开不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (7)

  1. 一种由用户设备执行的方法，包括：
    接收侧行通信的配置信息即第一配置信息；
    接收其他用户设备发送的侧行通信控制信息SCI和对应的物理侧行通信共享信道PSSCH；
    确定所述物理侧行通信共享信道PSSCH对应的物理侧行通信反馈信道PSFCH的传输时隙S；
    确定和所述时隙S相关联的N个侧行通信时隙，其中N是正整数。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第一配置信息是基站通过无线资源控制RRC信令发送的配置信息；或
    所述第一配置信息包含在所述用户设备的预配置信息中，
    所述第一配置信息中包含资源池的配置信息即第二配置信息。
  3. 根据权利要求2所述的方法，其特征在于，
    所述第二配置信息包含：PSFCH的周期即所述N；和反馈间隔K，其中K是正整数。
  4. 根据权利要求3所述的方法，其特征在于，
    所述用户设备确定所述物理侧行通信共享信道PSSCH对应的物理侧行通信反馈信道PSFCH的传输时隙S，使得所述PSFCH和所述PSSCH之间的间隔为大于或者等于所述反馈间隔K的最小整数，并且使得所述时隙S中含有PSFCH资源。
  5. 根据权利要求3所述的方法，其特征在于，
    所述用户设备根据所述周期N确定和所述时隙S相关联的N个侧行通信时隙。
  6. 根据权利要求1所述的方法，其特征在于，还包括：
    所述用户设备确定所述PSSCH所在的时隙为所述N个侧行通信时隙的第i+1个，其中，i＝0，1，...，N-1，用于确定所述PSFCH的资源。
  7. 一种用户设备，包括：
    处理器；以及
    存储器，存储有指令；
    其中，所述指令在由所述处理器运行时执行根据权利要求1至6中任一项所述的方法。
PCT/CN2020/096790 2019-06-19 2020-06-18 由用户设备执行的方法以及用户设备 WO2020253770A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/617,914 US20220312388A1 (en) 2019-06-19 2020-06-18 Method performed by user equipment, and user equipment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910535303.6A CN112118628A (zh) 2019-06-19 2019-06-19 由用户设备执行的方法以及用户设备
CN201910535303.6 2019-06-19

Publications (1)

Publication Number Publication Date
WO2020253770A1 true WO2020253770A1 (zh) 2020-12-24

Family

ID=73795846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/096790 WO2020253770A1 (zh) 2019-06-19 2020-06-18 由用户设备执行的方法以及用户设备

Country Status (3)

Country Link
US (1) US20220312388A1 (zh)
CN (1) CN112118628A (zh)
WO (1) WO2020253770A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3834328A1 (en) * 2018-08-08 2021-06-16 IDAC Holdings, Inc. Method and apparatus for physical sidelink control channel (pscch) design in new radio (nr)
US11863972B2 (en) * 2021-04-22 2024-01-02 Qualcomm Incorporated Resolving reservation ambiguity of sidelink control information repetition in sidelink communications
CN115549866A (zh) * 2021-06-30 2022-12-30 华为技术有限公司 侧行链路反馈信息传输的方法和通信装置
CN115734353A (zh) * 2021-08-27 2023-03-03 维沃移动通信有限公司 信息指示方法、装置、终端及可读存储介质
WO2023184050A1 (en) * 2022-03-26 2023-10-05 Qualcomm Incorporated Multi-bit sidelink feedback

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018143786A1 (ko) * 2017-02-06 2018-08-09 엘지전자(주) 무선 통신 시스템에서 사이드링크 통신을 수행하는 방법 및 이를 위한 장치
WO2018208114A1 (ko) * 2017-05-11 2018-11-15 엘지전자 주식회사 무선 통신 시스템에서 중계 ue를 통하여 사이드링크 자원을 할당하는 방법 및 장치
WO2019031808A1 (en) * 2017-08-07 2019-02-14 Lg Electronics Inc. METHOD FOR TRANSMITTING AND RECEIVING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREOF

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11844085B2 (en) * 2019-08-23 2023-12-12 Qualcomm Incorporated Configured grants for sidelink communications
US11234237B2 (en) * 2020-04-09 2022-01-25 Asustek Computer Inc. Method and apparatus of handling time gap for sidelink hybrid automatic request (HARQ) in network scheduling mode in a wireless communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018143786A1 (ko) * 2017-02-06 2018-08-09 엘지전자(주) 무선 통신 시스템에서 사이드링크 통신을 수행하는 방법 및 이를 위한 장치
WO2018208114A1 (ko) * 2017-05-11 2018-11-15 엘지전자 주식회사 무선 통신 시스템에서 중계 ue를 통하여 사이드링크 자원을 할당하는 방법 및 장치
WO2019031808A1 (en) * 2017-08-07 2019-02-14 Lg Electronics Inc. METHOD FOR TRANSMITTING AND RECEIVING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREOF

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ITL: "Discussion on NR V2X HARQ Mechanism", 3GPP TSG RAN WG1 MEETING #95, R1-1813976, 13 November 2018 (2018-11-13), XP051480165, DOI: 20200818134954 *
ZTE ET AL.: "NR sidelink physical layer structure", 3GPP TSG RAN WG1 #97, R1-1906457, 3 May 2019 (2019-05-03), XP051708492, DOI: 20200818134904 *

Also Published As

Publication number Publication date
US20220312388A1 (en) 2022-09-29
CN112118628A (zh) 2020-12-22

Similar Documents

Publication Publication Date Title
WO2020253770A1 (zh) 由用户设备执行的方法以及用户设备
WO2020221151A1 (zh) 由用户设备执行的方法以及用户设备
WO2020125679A1 (zh) 由用户设备执行的方法以及用户设备
WO2021057960A1 (zh) 由用户设备执行的方法以及用户设备
WO2022028413A1 (zh) 由用户设备执行的方法以及用户设备
WO2020135320A1 (zh) 由用户设备执行的方法以及用户设备
WO2020169067A1 (zh) 由用户设备执行的方法以及用户设备
WO2022143641A1 (zh) 由用户设备执行的方法以及用户设备
WO2020088513A1 (zh) 由用户设备执行的方法以及用户设备
WO2021204191A1 (zh) 由用户设备执行的方法以及用户设备
WO2021136373A1 (zh) 由用户设备执行的方法以及用户设备
US20230276473A1 (en) Method performed by user equipment, and user equipment
WO2021190521A1 (zh) 由用户设备执行的方法以及用户设备
WO2021018236A1 (zh) 由用户设备执行的方法以及用户设备
WO2023131074A1 (zh) 由用户设备执行的方法以及用户设备
WO2022267943A1 (zh) 由用户设备执行的方法以及用户设备
WO2022152163A1 (zh) 由用户设备执行的方法以及用户设备
WO2022194243A1 (zh) 由用户设备执行的方法以及用户设备
WO2021228138A1 (zh) 由用户设备执行的方法以及用户设备
WO2021197379A1 (zh) 由用户设备执行的方法以及用户设备
WO2022028330A1 (zh) 由用户设备执行的方法以及用户设备
WO2021013213A1 (zh) 由用户设备执行的方法以及用户设备
WO2020248729A1 (zh) 由用户设备执行的方法以及用户设备
WO2021139619A1 (zh) 由用户设备执行的方法以及用户设备
WO2021160034A1 (zh) 由用户设备执行的方法以及用户设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20826483

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20826483

Country of ref document: EP

Kind code of ref document: A1